Question

if 3 tan A = 4 prove that under root 1 minus sin A
upon 1 + Cos A​

Answer 1

Answer:

Step-by-step explanation:

3tanA=4

tanA=4/3

now cos A=3/5

sinA=4/5

sqrt((1-sinA)/(1+cosA))

=sqrt((1-4/5)/(1+3/5))

=sqrt((1/5)/(8/5))

=sqrt(1/8)

=1/2sqrt(2)