Question

If sec A=2, find the value of 4 + 4 tan^2 A​

Answer 1

Answer:

16

Step-by-step explanation:

4(1+tan^2 A)

{sec A = 2,then sec^2 A =4}

=4sec^2 A

4*4=16

Answer 2

Answer: 16

Step-by-step explanation:

We know that,

Sec²A = 1+ tan²A. ------- 1

Now,

Sec A=2

Squaring both side,

Sec²A= 4

Using 1,

1+tan²A= 4

Multiply by 4 both side

4+4tan²A= 16