Question

Evaluate:
5 sin square 30 degree + cos square 45 degree - 4 x tan square 30 degree upon 2 sin 30 degree into cos 30 degree + tan 45 degree...​

Answer 1

Step-by-step explanation:

Given, sinx+cosy=1

x=30

∘

Now, sin30+cosy=1

cosy=1−

2

1

cosy=

2

1

cosy=cos60

y=60

∘