Question

Evaluate cos square 56 degree + cos square 34 degrees upon sin square 56 degree + sin square 34 degree +

Answer 1

cos sq 56+ cos sq(90-56) /sin sq56 +sin sq(90 -56)
cos sq 56 + sin sq 56/ sin sq 56 +cos sq 56
1/1
1

since, sin sq tita =cos sq (90 - tita)
           cos sq tita =sin sq (90- tita)
           sin sq tita +cos sq tita =1

Answer 2

Answer:

Step-by-step explanation:

cos²34°+cos²56°/ sin²59°+sin²31°

=cos²(90°–59°)+cos²(90°–31°)/sin²59°+sin²31°

=sin²59°+sin²31°/sin²59°+sin²31°

= 1/1 = 1 ANS :)