Ask Answer - Inverse Trigonometric Functions - Recently Asked Questions for School Students

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Sanjukta Biswas

Subject: Maths, asked on 30/4/18

Q. Prove the following
(ii) $\tan^{- 1} \frac{1}{4} + \tan^{- 1} \frac{2}{9} = \frac{1}{2} \cos^{- 1} \frac{3}{5} = \frac{1}{2} \sin^{- 1} (\frac{4}{5})$

Palak Srivastava

Subject: Maths, asked on 29/4/18

Solve this:

Alok Singh

Subject: Maths, asked on 28/4/18

Solve this:
Q. Prove that $\sin^{2} \{\cos^{- 1} [\tan (\sin^{- 1} x)]\} = \frac{1 - 2 x^{2}}{1 - x^{2}}$

Palak Srivastava

Subject: Maths, asked on 28/4/18

Solve the equation 2tan^-1 (2x+1)= cos^-1 x

Palak Srivastava

Subject: Maths, asked on 28/4/18

Prove that tan^-1 2x + tan^-1 3x = pi/4

Palak Srivastava

Subject: Maths, asked on 28/4/18

Solve the equation sin^-1(x^2-2x+1) + cos^-1(x^2-x) = pi/2

Sudhanshu Singh

Subject: Maths, asked on 26/4/18

Solve this
Q. Write the value of $t a n^{- 1} (\frac{a}{b}) - \tan^{- 1} (a - \frac{b}{a + b})$ .

Ananya Priyansi

Subject: Maths, asked on 25/4/18

Find the domain of f(x) = cot x + cot^-1 x

sin^-1(sin 3)

cos^-1 (cos 4)

sin^-1 (sin 12)

tan^-1 (tan 2)

sec^-1 (sec 2 pi/3)

Palak Srivastava

Subject: Maths, asked on 25/4/18

If sin^-1 x and sin^-1 y = pi and x= ky then findthe value of 39^2k + 5^k

Mitali

Subject: Maths, asked on 24/4/18

How is (cosa + i sina -1)/(cosa +i sina +1) = 2i tan a/2..??! Please explain....

Shri Ganesh

Subject: Maths, asked on 19/4/18

the approximate value of (1.0002)³⁰⁰⁰ is

Shri Ganesh

Subject: Maths, asked on 16/4/18

$98 . T h e v a l u e o f t h e e x p r e s s i o n 2^{k} (\begin{matrix} n \\ 0 \end{matrix}) (\begin{matrix} n \\ k \end{matrix}) - 2^{k - 1} (\begin{matrix} n \\ 1 \end{matrix}) (\begin{matrix} n - 1 \\ k - 1 \end{matrix}) - 2^{k - 2} (\begin{matrix} n \\ 2 \end{matrix}) (\begin{matrix} n - 2 \\ k - 2 \end{matrix}) . . . . . . . . . . + (- 1)^{k} (\begin{matrix} n \\ 2 \end{matrix}) (\begin{matrix} n - 2 \\ k - 2 \end{matrix}) . . . . . . . . + {(- 1)}^{k} (\begin{matrix} n \\ k \end{matrix}) (\begin{matrix} n - k \\ 0 \end{matrix}) i s$

Samiksha Jain

Subject: Maths, asked on 16/4/18

If in a triangle ABC , a tanA +btanB =(a+b) tan(A+B) then,
1. A=B=C 2. C=A 3.A=B 4.B=C 2

Shri Ganesh

Subject: Maths, asked on 16/4/18

please help me solve this
Q. R be a relation = { (9, 8), (1, 9), (7, 6), (9, 6), (2, 7) } then $R^{- 1} \circ R$ is

Sofiya Parihar

Subject: Maths, asked on 14/4/18

Plzzz..slove...question.no..9
Q.9. Find the values of a and b if
$\frac{7 + 3 \sqrt{5}}{3 + \sqrt{5}} - \frac{7 - 3 \sqrt{5}}{3 - \sqrt{5}} = a + b \sqrt{5}$

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