Recent questions in Math

If $2x-5 \sqrt x+9=16$ then $5 \sqrt x-15=$

asked Jul 26, 2018 by meena.p

1 answer

The equation $\large\frac{1}{4}$$(4x^2-8x-p)=132$, is satisfied. When $x=+8$ and $x=-6$. What is the value of $\large\frac{p}{4}$ ?

asked Jul 26, 2018 by meena.p

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What will be the sum of values of x in the equation $16^x-10(4)^x+16=0$ ?

asked Jul 24, 2018 by meena.p

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Solve for x: $\qquad \qquad \qquad 2(x+2)^2=3x-5$

asked Jul 24, 2018 by meena.p

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If $18x^2=39x+84$, what can be the possible values of x.

asked Jul 24, 2018 by meena.p

1 answer

If $\large\frac{x^2-x}{x-1}$$=1$ what are the possible values of $x$ are :

asked Jul 24, 2018 by meena.p

1 answer

Simplify the rational expression : $\qquad \qquad \qquad \large\frac{6k^2-18k-24}{2k+2} $

asked Jul 24, 2018 by meena.p

1 answer

$36x^2-12x-15=0$ solve for $x$

asked Jul 24, 2018 by meena.p

1 answer

Given $x^2-5x+6=0$ and $x+k=4$ find the value of k.

asked Jul 24, 2018 by meena.p

1 answer

Solve $\qquad \qquad \qquad 2x^2+7x-9=0$

asked Jul 24, 2018 by meena.p

1 answer

In a right angled triangle, one of the angles measure $x^{\circ}$ If $\sin x^{\circ}=\large\frac{\sqrt 3}{2}$ . What is $\cos(90-x)$ ?

asked Jul 9, 2018 by meena.p

1 answer

In a triangle $PQR$ right angled at $Q$, $QR=12\;cm$ and $PR=20\;cm$ . Triangle $ABC$ is similar to triangle $PQR$ where the vertices P,Q and R are corresponding to the vertices A,B and C. Each side of $\Delta ABC$ is $\large\frac{1}{4}$ the length of the corresponding slides of $\Delta PQR$. What is the value of $\sin C$ ?

asked Jul 9, 2018 by meena.p

1 answer

A building $A,B$ is 40 m long. It cuts the shadow that is as long as the building then what is an angle $x$ in the given figure below?

asked Jul 9, 2018 by meena.p

1 answer

If $x$ is an angle such that $0< x<90^{\circ}$, which of the following statements is not always true?

asked Jul 9, 2018 by meena.p

1 answer

Simplify $(3i)^9$

asked Jul 9, 2018 by meena.p

1 answer

Simplify $(2+3i)(1-i)$

asked Jul 9, 2018 by meena.p

1 answer

If $x=2+i$ and y is its complex conjugate then evaluate $x^2+2xy+y^2$

asked Jul 9, 2018 by meena.p

1 answer

Evaluate $(5i)^4.(4i)^3$

asked Jul 9, 2018 by meena.p

1 answer

The complex number $2+4i$ is one of the roots to the quadratic equation $x^2+bx+c=0$ where $b$ and $c$ are real numbers. The values of $b$ and $c$ are

asked Jul 9, 2018 by meena.p

1 answer

Find the value of $k$ if $\large\frac{2-ki}{k-i}$ is purely an imaginary number.

asked Jul 9, 2018 by meena.p

1 answer

$\cos^4 \theta-\sin^4 \theta=$

asked Jul 6, 2018 by meena.p

1 answer

$cosec \bigg(\large\frac{13 \pi}{6}\bigg)$ is equal to

asked Jul 6, 2018 by meena.p

1 answer

$\cot -300^{\circ} =$

asked Jul 6, 2018 by meena.p

1 answer

$\sin^2 \large\frac{\pi}{4} + \normalsize \cos^2 \large\frac{\pi}{3}-$$2 \tan^2 \large\frac{\pi}{3}$ is

asked Jul 6, 2018 by meena.p

1 answer

In a right angled triangle $ABC$, and if $\angle C$ is $90^{\circ}$, and if $\tan B=\large\frac{4}{3}$, find the value of $\sin ^2A+\cos ^2B$

asked Jul 6, 2018 by meena.p

1 answer

given $\sin x=k$, where $\large\frac{\pi}{2} < \normalsize x< \large\frac{\rho \pi}{2}$ and $x$ is a radian measure of an angle. $\sin z=-k$ which of the following could not be the value ?

asked Jul 6, 2018 by meena.p

1 answer

Simplify the below expression and express in the form of $a+ib$ $\qquad \qquad \qquad \qquad \large\frac{5-i}{7+i}$

asked Jul 6, 2018 by meena.p

1 answer

If $4x^2=y^3$, what is the following equivalent to in terms of: $y$ $\qquad \qquad \qquad \large\frac{x}{\sqrt y}$

asked Jul 6, 2018 by meena.p

1 answer

Evaluate $9i^9+10i^{10}+11i^{11}+12i^{12}$

asked Jul 6, 2018 by meena.p

1 answer

An arithmetic sequence begins as follows: $3,3i........$ Give the next term of the sequence

asked Jul 6, 2018 by meena.p

1 answer

From $\large\frac{3}{4}+\frac{1}{2}\;$$i$ subtract its complex conjugate . What is the difference ?

asked Jul 6, 2018 by meena.p

1 answer

We don`t use volume balance in a chemical process because

asked Jul 4, 2018 by meena.p

1 answer

If $\sin x=\cos\bigg(\large\frac{13 \pi}{6}\bigg)$ find the value of x

asked Jul 4, 2018 by meena.p

1 answer

If $cosec \theta= \large\frac{5}{12}$ , find the value of $\sin^2 \theta+\cot ^3 \theta$

asked Jul 4, 2018 by meena.p

1 answer

If $\cot c=\sqrt 3$ and $AC=6$ , find the area of the circle

asked Jul 4, 2018 by meena.p

1 answer

Find the value of $cosec \bigg(\large\frac{2\pi}{3}\bigg)$

asked Jul 4, 2018 by meena.p

1 answer

Which of the following angle given below is coterminal with $750^{\circ}$ ?

asked Jul 4, 2018 by meena.p

1 answer

Simplify $i^{14}+i^{122}$

asked Jul 4, 2018 by meena.p

1 answer

Find the value of $\large\frac{\sqrt{-18}}{\sqrt{75}}$

asked Jul 4, 2018 by meena.p

1 answer

Simplify : $(3+4i)^2$

asked Jul 4, 2018 by meena.p

1 answer

Which of the following are the equation $x^2-4x+5$?

asked Jul 4, 2018 by meena.p

1 answer

Simplify the expression : $\large\frac{6+\sqrt 8 i}{3- \sqrt 2 i}$

asked Jul 4, 2018 by meena.p

1 answer

If $\sin x =\large\frac{5}{12}$ find the value of $2 \sec^2 x +\cot^2 x$

asked Jul 2, 2018 by meena.p

1 answer

Find the area of this isosceles triangle ABC shown below, where $AB =15\;m$ and $BC= 20\;m$ and $\angle ABC=60^{\circ}$. Then the

asked Jul 2, 2018 by meena.p

1 answer

The cosine of which angle given below is not equal to this cosine of the other three ?

asked Jul 2, 2018 by meena.p

1 answer

Which of the following is true based on the given figure ?

asked Jul 2, 2018 by meena.p

1 answer

If $\cot x=\large\frac{6}{8}$ What is the value of $\sin x$

asked Jun 29, 2018 by meena.p

1 answer

If the area of $\triangle ABC $ is 225 and $AB=17$, then what is the value of $\cos x$ ?

asked Jun 29, 2018 by meena.p

1 answer

Which of the following is the measure in degrees of $\angle PQR$ in the figure below

asked Jun 29, 2018 by meena.p

1 answer

Find the area of an isosceles triangle given below, where equal sides are each 10m and $x^{\circ}=30^{\circ}$

asked Jun 29, 2018 by meena.p

1 answer

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