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Recent questions tagged q10

If three lines whose equations are $y = m_1, x+ c_1, y = m_2, x+c_2$ and $y = m_3, x+c_3$ are concurrent, then show that $m_1(c_2-c_3)+m_2(c_3-c_1)+m_3(c_1-c_2)=0$

asked May 20, 2014 by thanvigandhi_1

1 answer

The number of possible outcomes in a throw of n ordinary dice in which atleast one of the dice shows and odd number is

asked May 19, 2014 by sreemathi.v

1 answer

Find the number of different words that can be formed from the letters of the word TRIANGLE so that no vowels are together

asked May 15, 2014 by sreemathi.v

1 answer

From a class of 25 students 10 are to be chosen for an excursion party.There are 3 students who decide that either all of them will join or none of them will join.In how many ways can the excursion party be chosen?

asked May 14, 2014 by sreemathi.v

1 answer

In how many of the distinct permutations of the letters in MISSISSIPPI do the four $'I'$s not come together?

asked May 13, 2014 by sreemathi.v

1 answer

The line through the points $(h,3)$ and $(4,1)$ intersects the line $7x-9y-19=0$ at right angle. Find the value of $h$.

asked May 10, 2014 by thanvigandhi_1

1 answer

Prove the following statement by the principle of mathematical induction : \[\] $n(n^2+5)$ is divisible by 6, for each natural number $n$.

asked May 5, 2014 by thanvigandhi_1

0 answers

If $y= \sqrt {1-x^2}+x \sqrt {1-y^2} =1$ prove that $\large\frac{dy}{dx} =$$(-1) \sqrt {\large\frac{1-y^2}{1-x^2}}$

asked May 1, 2014 by meena.p

0 answers

Prove the following by using the principle of mathematical induction for all $n \in N$ \[\] $ \large\frac{1}{2.5}$$+\large\frac{1}{5.8}$$+\large\frac{1}{8.11}$$+...+\large\frac{1}{(3n-1)(3n+2)}$$=\large\frac{1}{(6n+4)}$

asked Apr 29, 2014 by thanvigandhi_1

1 answer

If $\tan \theta+\sin \theta=m$ and $\tan\theta-\sin \theta=n$ then prove that $m^2-n^2=4\sin \theta\tan\theta$

asked Apr 18, 2014 by sreemathi.v

1 answer

Prove : $\sin(n+1)x\sin(n+2)x+\cos(n+1)x\cos(n+2)x=\cos x$

asked Apr 17, 2014 by sreemathi.v

1 answer

Find the value of the trigonometric function $\cot(\large\frac{-15\pi}{4})$

asked Apr 17, 2014 by sreemathi.v

1 answer

Find the derivative of the following functions ( it is to be understood that a, b, c, d, p, q, r and s are fixed non-zero constants and m and n are integers ) $\large\frac{a}{x^4}-\large\frac{b}{x^2}$$+\cos x$

asked Apr 12, 2014 by thanvigandhi_1

1 answer

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