Question

1
Sin 70° - Cos 40°
Cos 50° - Sin 20°
ساده
3​

Answer 1

Explanation:

pls mark as brainlist answer

Answer 2

Answer:

• sin70° - cos40°

= sin 70 - sin (90 - ø)

= sin 70 - sin (90 - 40)

= sin 70 - sin 50

= sin 20°

• cos 50° - sin 20°

= sin ( 90 - ø) - sin 20

= sin ( 90 - 50) - sin 20

= sin 40 - sin 20

= sin 20°

Ps — Use degree sign wherever necessary.

— ø = theta.

— Confirm with someone else.