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Recent questions tagged trigonometric-identities
Questions
For a $\Delta ABC$ it is given that : $\cos A+\cos B+\cos C=\large\frac{3}{2}$.What type of triangle is $ABC$?
jeemain
math
class11
ch3
trigonometric-functions
q40
trigonometric-identities
difficult
asked
Nov 19, 2013
by
sreemathi.v
1
answer
Find the value of $\tan\large\frac{\pi}{8}$
jeemain
math
class11
ch3
trigonometric-functions
q62
trigonometric-identities
easy
asked
Oct 10, 2013
by
sreemathi.v
1
answer
If $\sin x+\sin^2x=1$ then $\cos^8x+2\cos^6x+\cos^4x$ is equal to
jeemain
math
class11
ch3
trigonometric-functions
q28
trigonometric-identities
easy
asked
Oct 8, 2013
by
sreemathi.v
1
answer
If $\sin x+\sin^2x=1$ then value of $\cos^2x+\cos^4x$ is equal to
jeemain
math
class11
ch3
trigonometric-functions
q27
trigonometric-identities
easy
asked
Oct 8, 2013
by
sreemathi.v
1
answer
$\cos 2^3\large\frac{\pi}{10}$$\cos 2^4\large\frac{\pi}{10}$$\cos 2^5\large\frac{\pi}{10}........$$\cos 2^{10}\large\frac{\pi}{10}$ is equal to
jeemain
math
class11
ch3
trigonometric-functions
q26
trigonometric-identities
easy
asked
Oct 8, 2013
by
sreemathi.v
1
answer
If $\tan^2\theta=2\tan^2\phi+1$ then $\cos 2\theta+\sin^2\phi$ is equal to
jeemain
math
class11
ch3
trigonometric-functions
q7
trigonometric-identities
easy
asked
Oct 4, 2013
by
sreemathi.v
1
answer
The value of $\large\frac{\cos\theta}{1+\sin\theta}$ is equal to
jeemain
math
class11
ch3
trigonometric-functions
q6
trigonometric-identities
easy
asked
Oct 4, 2013
by
sreemathi.v
1
answer
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