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The pattern followed here is: The first number is multiplied by 2 and then it is added to the second number to get the third number. (35, 30, 100) → (35 X 2 + 30) = 100 (52, 24, 128) → (52 X 2 + 24) = 128 (41, 34, 130) → (41 X 2 + 34) = 116 (12, 14, 58) → (12 X 2 + 14) = 38 (34, 38, 122) → (34 X 2 + 38) = 106 (20, 45, 85) → (20 X 2 + 45) = 85
sin2 9 ° + sin2 10 ° + sin2 11 ° + sin2 12 ° + ……… + sin2 81 ° = ?
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