Please provide me the solution of this question. Question no. 5(in the image)
Shaurya , 8 Years ago
Grade 12th pass
Trigonometry> Please provide me the solution of this qu...
1 AnswersSandeep Tegala
Last Activity: 8 Years ago
write sin(90+30-A)=cos(30-A)
sin(90+30+A)=cos(30+A)
the sum reduces to cos^2(30+A)+cos^2(30-A)+sin^2(A)
expand it and put cos30 and sin30 values it simplifies to 3/2(cos^2+sin^2)=3/2
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