Question

1.cos
4
x – sin4
x = ……………
(1) 2 sin2
x – 1 (2) 2 cos2
x – 1
(3) 1 + 2 sin2
x (4) 1 – 2 cos2
x
1.In given figure, the value of angle C is
(a) 90°(b) 45°(c) 30°(d) 60°

Answer 1

Answer:

.cos

4

x – sin4

x = ……………

(1) 2 sin2

x – 1 (2) 2 cos2

x – 1

(3) 1 + 2 sin2

x (4) 1 – 2 cos2

x

1.In given figure, the value of angle C is

(a) 90°(b) 45°(c) 30°(d) 60°