Question

2tan² 45+cos²30-sin²60​

Answer 1

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2 tan² 45° + cos² 30°–sin² 60°

=2tan²45°+cos² 30°–sin²(90°-30°)

=2×1²+cos²30°-cos²30°,because sin(90-θ)=cosθ

=2,Ans.

${\huge{\fcolorbox{black}{WHITE}{♡HAN JU HUI♡}}}$

Answer 2

Answer:

hey mate here is your answer....

Step-by-step explanation:

▶️ 2tan²45° + cos²30° - sin²60°

➡️ 2 x (1)² + ( √3 / 2 )² - ( √3 / 2 )²

➡️ 2 + 3 / 4 - 3 / 4

➡️ 2

Hope it helps!✌️