Question

The approximate value of x where
x = (sin 2°) (cos 2º), is :
(1)π/90
(2)2
(3)1
(4)π/45​

Answer 1

Answer:

sin 2°×cos2°=sin2°×sin(90-2)°

=sin 2°×sin88°

=sin(2+88)°

sin 90°

=1