Question

sin^2 5°+sin^2 10°+......sin^2 180°​

Answer 1

Answer:

135 is the answer

Step-by-step explanation:

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Answer 2

sin^2 5+ sin^2 85 = 1

sin^2 10 + sin^2 80 = 1

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sin^2 130 + sin^2 140 = 1

and also

sin^2 90 = 1

and

sin^2 45 + sin^2 135= 1

hence adding all we get 18