Question

If tan A=4/3 then what will be the value of sec A

Answer 1

now using identity

tan theta =underrootsec^2theta-1

4/3=underrootsec^2theta-1

on squaring both sides

16/9=sec^2theta-1

25/9=sec^2theta

sectheta=5/3.

hope u like it.

Answer 2

Answer:

sec A = 4/(3 x sin A)

Step-by-step explanation:

See tan A = sin A/ cos A = 4/3

So we know 1/ cos A = sec A

Which implies   sec A x sin A = 4/3

                 and   sec A = 4/(3 x sin A)

Hope this may help you....................