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Grade: 11
        
find the value of
sin25+sin210+sin215......+sin2180
one month ago

Answers : (1)

Saurabh Koranglekar
askIITians Faculty
2718 Points
							Dear student

Sin(theta) = sin (180- theta)

And sqr( sin(theta)) = sqr( cos (theta))

2( sqr( sin(5) + sqr(sin( 10) ...sqr(sin( 85)) + sqr(sin(90)) + sqr( sin( 180))

2( 8.5) + 1 = 18

Regards
one month ago
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