Home
Class 11
MATHS
Find the value of the : sin^2 pi/6 + cos...

Find the value of the : sin^2 pi/6 + cos^2 pi/3 - tan^2 pi/4`

A

`1/2`

B

`-1/2`

C

`sqrt3`

D

1

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

Solve the following:find the values of sin^2(pi/2)-cos^2(pi/2)+tan^2(pi/2)

The value of [sin pi/3 +i cos pi/3]^3 is

The value of sin^2 (pi/8)+sin^2 ((3pi)/8)+sin^2 ((5pi)/8)+sin^2 ((7pi)/8) is

Find the value of the expression 3[sin^(4)((3pi)/(2)-alpha)+sin^(4)(3pi+alpha)]-2[sin^(6)((pi)/(2)+alpha)+sin^(6)(5pi-alpha)] .

Using tables evaluate the following: cos^2 0+cos^2 (pi/6)+cos^2 (pi/3)+cos^2 (pi/2)

The value of expression (1+ sin 2 alpha)/(cos (2 alpha -2pi) tan (alpha -(3pi)/(4)))- 1/4 sin 2 alpha (cot ""(alpha)/(2) + cot ((3pi)/(2)+(alpha)/(2))) is

Find the equations of tangents and normals to the curve at the point on it: x sin 2y = y cos 2x at ((pi)/4, (pi)/2)

Find the value tan (pi/5)+2tan((2pi)/5)+4cot((4pi)/5).

The value of the expression (1+sin2alpha)/(cos(2alpha-2pi)tan(alpha-(3pi)/4))-1/4sin2alpha(cot(alpha/2)+cot((3pi)/2+alpha/2)) is

The maximum value of sin(x+pi/6)+cos(x+pi/6) in the internal (0,pi/2) is attained at