Question

if sinA = cosA then find the value of 2tanA​

Answer 1

Answer:

2tanA = 2

Step-by-step explanation:

To find: 2tanA

Given: sinA = cosA

divide cosA on both sides,

$\frac{sinA}{cosA} = \frac{cosA}{cosA}$

tanA = 1                                    [ $\frac{sinA}{cosA} = tanA$ ]

∴2tan A = 2 × 1

              =2