1.

3. If4tan A = 3, evaluate: (1tsinALEH S... 2> {(1+cosA) (1- cosA)

Answer»

Given tanA= 3/4(1+sinA)(1-sinA)/(1+cosA)(1-cosA)= (1- sinA^2)/(1-cosA^2)

Using sinA^2 + cosA^2 = 1

= cosA^2 /sinA^2= cotA^2

As tanA = 3/4 then cotA = 4/3

= (4/3)^2= 16/9 = 1.7 ans



Discussion

No Comment Found