The value of 2tan2 45° + cos2 30° - sin2 60° is:
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 2.
We know that,
⇒ tan 45° = 1
⇒ cos 30° = √3/2
⇒ sin 60° = √3/2
Putting values in the given question
⇒ 2tan2 45° + cos2 30° - sin2 60°
⇒ 2 × 1 + (√3/2)2 - (√3/2)2 = 2