Question

If x=30° verify that:
Sinx = √1-cos2x/2

Answer 1

i hope this is the right answer

Answer 2

Answer:

lHS of eq

sinx

when x=30

sin(30)=1/2

LHS=1/2

RHS of eq

root of(1-cos2x)/2

if x=30

=root of (1-cos60)/2

=root of(1-1/2)/2

=root of(1/2)/2

=root of (1/4)

=1/2

RHS=1/2

RHS=LHS=1/2

hence eq is proved

Step-by-step explanation: