Cos²45°+sin²60°+sin²30°
creativevishnu4:
Answer is 13/4
Answers
Answered by
1
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1. + √3. + 1
--- ----- -----
√2. 2. 2
root root cancled
1/2+1/2+1/2
3/2+2+2
3/6
1/2
cos^2 60
1. + √3. + 1
--- ----- -----
√2. 2. 2
root root cancled
1/2+1/2+1/2
3/2+2+2
3/6
1/2
cos^2 60
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Answered by
1
Answer:
3/2
Step-by-step explanation:
cos 45 = 1/sqrt 2
cos^2 (45) = 1/2
sin^2 (60) = 3/4
sin^2 (30) = 1/4
1/2 + 3/4 + 1/4 = 6/4 = 3/2
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