Recent questions and answers in Mathematics

Given the following statement: Statements: No shoe is a chappal. Some chappals are sandals. Now, consider the claims: C1: Some sandals are not chappals.. C2: Sandals which are not chappals are shoes. Now, mark according to the rules - \[\] i) Mark A if C1 is true, ii) Mark B if C2 is true,iii) Mark C if neither C1 nor C2 is true and iv) Mark D if both C1 and C2 are true.

answered Jun 28, 2021 by mohammadparvez616

1 answer

The sentence "____ if and only if $ x + x = 3x$" is TRUE. Which of the following could be used to fill in the blank?

answered Jun 16, 2021 by swatisss278

1 answer

Given the following statement: All doors are windows. Some windows are clips. Now, consider the claims: C1 :Some clips, if they are doors, they are also windows C2: All clips which are not widows are also not doors. Now, mark according to the rules - \[\] i) Mark A if C1 is true, ii) Mark B if C2 is true,iii) Mark C if neither C1 nor C2 is true and iv) Mark D if both C1 and C2 are true.

answered Jul 22, 2020 by praattiikk

1 answer

The no of triangle whose verticles on decagon but none of whose side came f

answered Dec 31, 2019 by kumaraditya95042

1 answer

The inverse of $f(x)=x-[x],$ where $[x]$ is greatest integer function is

answered Sep 29, 2019 by pranav.awasarmol123

2 answers

Find the equation of the ellipse referred to its centre whose minor axis is equal to the distance between the foci and whose latus is 10?

answered Jul 18, 2019 by dattawakde7507

2 answers

Given the following statement: Some pins are clips. Some clips are pens. Now, consider the claims: C1 :Some pins are pens and C2: No pin is a pen. Now, mark according to the rules - \[\] i) Mark A if C1 is true, ii) Mark B if C2 is true,iii) Mark C if neither C1 nor C2 is true and iv) Mark D if both C1 and C2 are true.

answered Jul 3, 2019 by rana99ankitt

1 answer

Given the following statement: All seats are hot. All belts are hot. Now, consider the claims: C1: Some seats are belts. C2: All hot are either seats or belts . Now, mark according to the rules - \[\] i) Mark A if C1 is true, ii) Mark B if C2 is true,iii) Mark C if neither C1 nor C2 is true and iv) Mark D if both C1 and C2 are true.

answered May 15, 2019 by swamiaboli91

1 answer

The variance of the first 50 even natural numbers is:

answered May 3, 2019 by clairtom2001

1 answer

If the variance of the random variable X is 9, the standard deviation of the random variable -4x+8 is?

answered Apr 6, 2019 by yachyuth2001

1 answer

If the set $S={1,2,3...........12}$ is to be partitioned into 3 sets A,B,C of equal size so that $A\cup\:\:B\cup\:C=S\:and\:A\cap\:B=B\cap\:C=C\cap\: A=\phi$, then the number of ways the partition can be done is equal to: \[\] $(A)\:\:\:\large \frac{12!}{3!(3!)^4}\quad$ $(B)\:\:\:\large \frac{12!}{(4!)^3}\quad$ $(C)\:\:\:\ \large \frac{12!}{(3!)^3}\quad$ $(D)\:\:\: \large \frac{12!}{3!(4!)^3}\quad$

answered Dec 28, 2018 by ravindrayadav78795

1 answer

$\lim\limits_{x \to 2} \frac{tan(x-2) \left | x^2+(k-2)x-xk \right | }{(x-2)^2}=5$ ..find k

answered Dec 28, 2018 by ravindrayadav78795

1 answer

What is $\displaystyle \int \frac {(x^2 +1)(x^2+2)}{(x^2+3)(x^2+4)} dx $ ?

answered Dec 13, 2018 by nikhilgautam7000

1 answer

The statement $\sim(p \leftrightarrow \sim q)$ is

answered May 25, 2018 by saumyaa316

1 answer

The number of integral terms in the expansion of $(5^{\large\frac{1}{2}}$$+7^{\large\frac{1}{8}}$$)^{1024}$ is ?

answered Apr 11, 2018 by vijayalakshmi.r

1 answer

Two fair dice are tossed once. The probability of getting an even number on the first die or a total of 8 is

answered Mar 18, 2018 by prakashtiwariaditya

2 answers

If $f_k(x) = \large\frac{1}{k}$$(\sin^k x + \cos^k x)$, where $x\in R$ and $k \geq 1$. The $f_4(x) - f_6(x)$ equals

answered Nov 15, 2017 by ityagi002

1 answer

If $O$ is origin, $|\overrightarrow{OP}|=3$ with $d.r.=(-1,2,-2)$ then the coordinate of $P$ is ?

answered Nov 7, 2017 by priyanka.c

2 answers

Find the area of rhombus formed by the lines $x\pm y\pm 1=0$?

answered Jul 28, 2017 by mandarkulkarni11

2 answers

Seven white balls and three black balls are randomly placed in a row. The probability that no two black balls are placed adjacently equals

answered Jul 9, 2017 by phaniajit2005

2 answers

If $f(x)=(x+1)^{\cot x}$ is continuous at $x=0$ then $f(0)$ is

answered May 30, 2017 by shivanip1436

2 answers

Find $\cos 55^{\large\circ}+\cos 65^{\large \circ}+\cos 175^{\large\circ}$

answered May 20, 2017 by rohtashkaumarsharma140971

2 answers

In a GP, given that the first term is $ 312 ½ $ and the common ratio is $ 1/2 $ find the sum of the terms of the series to infinity.

answered May 14, 2017 by nikunjjain285

1 answer

The total no. of terms in the expansion $(x+y)^{100}+(x-y)^{100} $ is ?

answered Nov 19, 2016 by devanshugarg200ce

2 answers