Question

If root 2 sin (60° – a) = 1 then a is? *
O A 60
O
B 15
O c 30
O D 45

Answer 1

Answer:

The answer is-

B )15

since sin45 is 1/root 2

Answer 2

Answer:

root 2 sin (60° – a) = 1

sin (60⁰ - a) = 1/root2

sin (60⁰ - a) = sin 45⁰

60⁰ - a = 45⁰

a = 60⁰-45⁰

a = 15⁰