sin²10° – sin²80° + sin 15°cos 75° +cos 15° sin 75°/cos θ sin(90°–θ)+sin θ cos(90°–θ).
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Answer:
sin
Step-by-step explanation:
sin90°-a=cosA
cos90°-A=sinA
explain aab khud kr baap ky paise zaya mat kr 10th ka hai chapter 8
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