Question

If a tan0 = b,then a cos 20 +bsin 20 =​

Answer 1

Answer:

a tan 20 =b

or, tan 20= b/a

so, height= b

base= a

hypotenuse=√(b²+a²)

cos20=a/√(b²+a²)

sin 20 = b/√(b²+a²)

a cos 20 + b sin 20

= a²/√(b²+a²) +b²/√(b²+a²)

= (a²+b²)/√(b²+a²)

=√(b²+a²)