Question

sin square 30 + sin squre 70/ sin thita.cos thita( 90-thita) + cos thita . sin thita ( 90- thita)

Answer 1

Answer:

sin²30+sin²70 /sin∅ . cos(90-∅) +cos∅ .sin(90-∅)

sin²30 +cos²30/sin∅.sin∅+cos∅.cos∅       ___{sin²70 = sin²(90-30) =cos²30}

=1/sin²∅.cos²∅

=1/1

=1

Step-by-step explanation: