perplexus.info :: Just Math : It is simpler than you think

It is simpler than you think (Posted on 2013-05-18)

Solve:
(sin x + cos x)³ + sin 2x -1/4*log_a b = 0

Given: a=sqrt(3+2*sqrt(2))-1
and b=1/sin 10-sqrt(3)/cos10

Hint: It is simpler than you think.

No Solution Yet Submitted by Ady TZIDON

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must be the solutions Comment 1 of 1

Assuming that the 10's involved are degree measure and that 1/4*loga(b) means (1/4)*loga(b), creating a table of values indicates solutions at x = (0 + k*360)° and (90 + k*360)°.

Posted by Charlie on 2013-05-19 09:39:08

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