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SINSQUARE 5+SINSQUARE10+------------------+SINSQUARE 85=81/2 |
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Answer» Answer: 8.5Step-by-step explanation: sin²5+sin²10+sin²15+...... = sin²(90-85)+sin²(90-80)+......+sin²85 = cos²85+cos²80+......+sin²85 = (sin²85+cos²85)+(sin²80+cos²80) +......(sin²50+cos²50)+sin²45 = 1+1+...8 times + 1/2 =8 PLEASE RATE, THANK AND MARK AS BRAINLIEST. |
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