If tanA + tanA = 2 then, the value of tan2A + tan2A is :
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 2
tanA + tanA = 2
⇒ 2tan A = 2
⇒ tan A = 1
Now, tan2A + tan2A
= 2 tan2A
= 2(tan A)2
= 2(12)
= 2 × 1
= 2
Therefore, the required value is 2.