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1. P(x) = 30x3 - 7x2 - 7x+2 (1) Prove that (2x + 1) is a factor of P(x). (2) Factorise P(x) completely. (3) Prove

1. P(x) = 30x3 - 7x2 - 7x+2 (1) Prove that (2x + 1) is a factor of P(x). (2) Factorise P(x) completely. (3) Prove that there are no real solution to the equation 30sec2x + 2 cos x = secx + 1 7

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