Question

do this question and send your answer​

Answer 1

Step-by-step explanation:

I. - sin 45⁰ = - 1/ √2

ii. tan 225⁰ = tan ( 2× 90 + 45)⁰ = tan 45⁰ = 1

iii. cos 300⁰ = cos ( 3× 90 + 30)⁰ = sin 30 = 1/2

iv. sec 120 = sec (2× 90 - 60) = - sec 60 = - 2