Evaluate 2 tan245° + cos²30° - sin?60°
Ha facilst 2 tan²45° + cos²30° - sin?60°
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Answered by
2
Answer:2tan²45+cos²30-sin²60
=2*1+(√3/2)²-(√3/2)²
=2+3/4-3/4
=2
Step-by-step explanation:
Answered by
1
ANSWER:2.
STEP BY STEP EXPLANATION:
2tan^2 45° + cos^2 45° _ sin^2 60°
=2 (1^2) +(_/3/2)^2 _ (_/3/2)^2. (since,tan45°=1. )
( cos30°=(_/3/2) )
( sin60°=(_/3/2) )
=2×1+3/4_3/4
=2+0/4
=2+0
=2
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