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C С С22 C4R cos + 4R sin2= 4R2C2= 4R Cos/?C+ sin?2 2= 4R (1) = 4R11. Prove that r + rz + ri - r2 = 4R cos B(Mar-2018(AP), 2012: Consider rir + r-ra |
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Answer» ONG>ANSWER: I. All potteries can never be metals. |
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