Question

if tita =30 then find the value of 1-tan²tita/1+tan²tita

Answer 1

Ø=30 so tan30=1/3^½

So tan²30 = 1/3...

Substitute.. u will get ½ as answer

Answer 2

Here Φ= 30°

Therefore

1-tan²Φ/1+tan²Φ =1-(1/√3)² / 1-(1/√3)²

1-1/3÷1+1/3

3-1/3 ÷ 3+1/3

2/4

1/2

Here is the answer