Register

Recent questions tagged trigonometry

0 votes
1 answer
1
NIELIT 2022 Feb Scientist D - Section D: 8
If $\{ (2 \sin \theta – \cos \theta) / (\cos \theta + \sin \theta) \} = 1,$ then the value of $\tan \theta$ is : $\frac{1}{3}$ $\frac{1}{2}$ $2$ $3$
If $\{ (2 \sin \theta – \cos \theta) / (\cos \theta + \sin \theta) \} = 1,$ then the value of $\tan \theta$ is :$\frac{1}{3}$$\frac{1}{2}$$2$$3$
0 votes
0 answers
2
NIELIT 2022 Feb Scientist D - Section D: 10
If $\sin 3A = \cos (A – 26^{\circ}),$ where $3A$ is an acute angle then the value of $A$ is : $29^{\circ}$ $31^{\circ}$ $39^{\circ}$ $23^{\circ}$
If $\sin 3A = \cos (A – 26^{\circ}),$ where $3A$ is an acute angle then the value of $A$ is :$29^{\circ}$$31^{\circ}$$39^{\circ}$$23^{\circ}$
0 votes
0 answers
3
NIELIT 2022 Feb Scientist D - Section D: 22
If $\sec \theta + \tan \theta = \sqrt{3},$ then the positive value of $\sin \theta$ is : $\frac{\sqrt{3}}{2}$ $\frac{1}{2}$ $\frac{1}{\sqrt{3}}$ $\sqrt{3}$
If $\sec \theta + \tan \theta = \sqrt{3},$ then the positive value of $\sin \theta$ is :$\frac{\sqrt{3}}{2}$$\frac{1}{2}$$\frac{1}{\sqrt{3}}$$\sqrt{3}$
0 votes
1 answer
4
NIELIT 2019 Feb Scientist D - Section D: 17
If $ \ Sinx+Sin^{2} x=1$ then $ \ Cos^{8}x+ 2 \ Cos^{6} x+ \ Cos^{4} x$ equals to : $0$ $-1$ $1$ $2$
If $ \ Sinx+Sin^{2} x=1$ then $ \ Cos^{8}x+ 2 \ Cos^{6} x+ \ Cos^{4} x$ equals to :$0$$-1$$1$$2$
1 votes
1 answer
5
NIELIT 2019 Feb Scientist D - Section D: 24
$ \sin^{-1}\left [ \frac{3}{5} \right ] + \tan^{-1}\left [ \frac{1}{7} \right ]=$ $\frac{\pi }{4}$ $\frac{\pi }{2}$ $ \cos^ {-1} \frac{4}{5} $ $\pi$
$ \sin^{-1}\left [ \frac{3}{5} \right ] + \tan^{-1}\left [ \frac{1}{7} \right ]=$$\frac{\pi }{4}$$\frac{\pi }{2}$$ \cos^ {-1} \frac{4}{5} $$\pi$
1 votes
1 answer
6
NIELIT 2019 Feb Scientist C - Section D: 7
If $\theta$ is an acute angle and $\tan\theta+\cot\theta =2$, Find the value of $\tan ^{7}\theta +\cot ^{7}\theta$. $-2$ $1$ $2$ $0$
If $\theta$ is an acute angle and $\tan\theta+\cot\theta =2$, Find the value of $\tan ^{7}\theta +\cot ^{7}\theta$.$-2$$1$$2$$0$
0 votes
1 answer
7
NIELIT 2019 Feb Scientist C - Section D: 11
The expressions $\dfrac{\tan A}{1-\cot A}+\dfrac{\cot A}{1-\tan A}$ can be written as: $\sin A \ \cos A+1$ $\sec A \ cosec A+1$ $\tan A+ \cot A+1$ $\sec A +cosec A$
The expressions $\dfrac{\tan A}{1-\cot A}+\dfrac{\cot A}{1-\tan A}$ can be written as:$\sin A \ \cos A+1$$\sec A \ cosec A+1$$\tan A+ \cot A+1$$\sec A +cosec A$
1 votes
1 answer
9
NIELIT 2019 Feb Scientist C - Section D: 16
If $cosec\theta-\sin\theta=1$ and $\sec\theta-\cos\theta=m$, then $l^{2}m^{2}(l^{2}+m^{2}+3)$ equals to: $1$ $2$ $2 \sin\theta$ $\sin\theta \cos\theta$
If $cosec\theta-\sin\theta=1$ and $\sec\theta-\cos\theta=m$, then $l^{2}m^{2}(l^{2}+m^{2}+3)$ equals to:$1$$2$$2 \sin\theta$$\sin\theta \cos\theta$
0 votes
0 answers
10
CAT 2015 | Question: 100
The angle of elevation of the top of a tower $30$ m high, from two points on the level ground on its opposite sides are $45$ degrees and $60$ degrees. What is the distance between the two points? $30$ $51.96$ $47.32$ $81.96$
The angle of elevation of the top of a tower $30$ m high, from two points on the level ground on its opposite sides are $45$ degrees and $60$ degrees. What is the distanc...
2 votes
1 answer
11
CAT 2019 Set-1 | Question: 91
The number of the real roots of the equation $2\cos (x(x+1))=2^{x}+2^{-x}$ is $2$ $1$ infinite $0$
The number of the real roots of the equation $2\cos (x(x+1))=2^{x}+2^{-x}$ is$2$$1$infinite$0$
To see more, click for the full list of questions or popular tags.