Question

If Sec A =tanA =4 then find the value of secA-tanA

Answer 1

Lhs

Sec=tan=4
Sec-tan=4

1/cos-sin/cos=4

1-sin/cos=4..............(1)



Rhs
Sec-tan
1/cos-sin/cos
1-sin/cos
=4.....from eq 1