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10 When 0° < A <909, solve the following equations:() Sin 3A = cos 2Aし-tan 5A = cot A.

Answer»

tan5A= cot2Atan5A= tan(pi/2-2A)general solution is5A=npi+(pi/2-2A)7A=(2n+1)pi/2

answer is 15°



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