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Recent questions tagged trigonometric-functions
Questions
If $\large\frac{1+\sin 2x}{1-\sin 2x}$$=\cot^2(a+x)$ $\forall x\in R\sim \big(n\pi+\large\frac{\pi}{4}\big)$$ n\in N$ then $'a'$ is equal to
jeemain
math
class11
ch3
trigonometric-functions
q20
trignometric-identities
easy
asked
Oct 7, 2013
by
sreemathi.v
1
answer
If $\sin x+\sin^2 x=1$ then the value of $\cos^2x+3\cos^{10}x+3\cos^8 x+\cos^6x$ is equal to
jeemain
math
class11
ch3
trigonometric-functions
q19
trignometric-identities
easy
asked
Oct 7, 2013
by
sreemathi.v
1
answer
If $\cos x=\large\frac{2\cos y-1}{2-\cos y}$ where $x,y\in (0,\pi)$ then $\tan\large\frac{x}{2}$$.\cot\large\frac{y}{2}$ is equal to
jeemain
math
class11
ch3
trigonometric-functions
q18
trignometric-identities
easy
asked
Oct 7, 2013
by
sreemathi.v
1
answer
If $A+B=\large\frac{\pi}{3}$ where $A,B\in R^+$ then the minimum value of $\sec A+\sec B$ is equal to
jeemain
math
class11
ch3
trigonometric-functions
q17
trignometric-equations
easy
asked
Oct 7, 2013
by
sreemathi.v
1
answer
The numerical value of $\tan 20^{\circ}\tan 80^{\circ}\cot 50^{\circ}$ is equal to
jeemain
math
class11
ch3
trigonometric-functions
q16
angles
easy
asked
Oct 7, 2013
by
sreemathi.v
1
answer
If $\alpha+\beta+\gamma=\pi$ then the value of $\sin^2\alpha+\sin^2\beta-\sin^2\gamma$ is equal to
jeemain
math
class11
ch3
trigonometric-functions
q15
trignometric-identities
easy
asked
Oct 7, 2013
by
sreemathi.v
1
answer
The maximum value of $\sin(\cos x)$ is equal to
jeemain
math
class11
ch3
trigonometric-functions
q14
trignometric-equations
easy
asked
Oct 7, 2013
by
sreemathi.v
1
answer
If in a $\Delta ABC$ $\angle C=90^{\circ}$ then the maximum value of $\sin A\sin B$ is
jeemain
math
class11
ch3
trigonometric-functions
q13
trignometric-identities
easy
asked
Oct 7, 2013
by
sreemathi.v
1
answer
The maximum value of $4\sin^2x+3\cos^2x+\sin\large\frac{x}{2}$$+\cos\large\frac{x}{2}$ is
jeemain
math
class11
ch3
trigonometric-functions
q12
trignometric-equations
easy
asked
Oct 7, 2013
by
sreemathi.v
1
answer
In $\sin x=-\cos^2x$ then $\cos^2x(1+\cos^2x)$ equals
jeemain
math
class11
ch2
trigonometric-functions
q11
trignometric-identities
easy
asked
Oct 7, 2013
by
sreemathi.v
1
answer
The minimum value of $\cos(\cos x)$ is
jeemain
math
class11
ch3
trigonometric-functions
q10
trignometric-equations
easy
asked
Oct 7, 2013
by
sreemathi.v
1
answer
The maximum and minimum values of $7\cos\theta+24\sin\theta$ are equal to
jeemain
math
class11
ch3
trigonometric-functions
q9
angles
easy
asked
Oct 7, 2013
by
sreemathi.v
1
answer
If $\theta=\large\frac{\pi}{2^n+1}$ then $\cos \theta\cos 2\theta\cos 2^2\theta......\cos2^{n-1}\theta$ is equal to
jeemain
math
class11
ch3
trigonometric-functions
q8
basic-trigonometric-functions
easy
asked
Oct 4, 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
The value of $\sin(n+1)A\sin(n+2)A+\cos(n+1)A\cos(n+2)A$ is equal to
jeemain
math
class11
ch3
trigonometric-functions
q5
angles
easy
asked
Oct 4, 2013
by
sreemathi.v
1
answer
The value of $\cos(45^{\circ}-A)\cos(45^{\circ}-B)-\sin(45^{\circ}-A)\sin(45^{\circ}-B)$ is equal to
jeemain
math
class11
ch3
trigonometric-functions
q4
angles
easy
asked
Oct 4, 2013
by
sreemathi.v
1
answer
Which one is not periodic
jeemain
math
class11
ch3
trigonometric-functions
q3
angles
easy
asked
Oct 4, 2013
by
sreemathi.v
1
answer
The number of solution of $\tan x+\sec x=2\cos x$ in $[0,2\pi]$ is
jeemain
math
class11
ch3
trigonometric-functions
q2
trignometric-equations
easy
asked
Oct 4, 2013
by
sreemathi.v
1
answer
Let $f(\theta)=\sin \theta(\sin \theta+\sin 3\theta)$.Then $f(\theta)$ is
jeemain
math
class11
ch3
trigonometric-functions
q1
basic-trigonometric-functions
easy
asked
Oct 4, 2013
by
sreemathi.v
1
answer
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