evaluate without using table 3 sin^2 45 + 2 cos^2 60
marsu , 7 Years ago
Grade 11
9 grade maths> evaluate without using table 3 sin^2 45 +...
1 Answers
Pranay
Last Activity: 7 Years ago
3sin^2 45 + 2cos^2 60,As sin45 =1/√2, sin45^2=1/2,Similarly cos^260=1/4Si,3/2+ 1/2= 2Hope this would help
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