I ran into problems with these two trig equations, can someone help me ?
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For the first problem: Substitute yielding and solve the quadratic for z: Hence Using the definition of the arccos and arcsin, the only solution that works is .
Thank you very much, i understand it now. Do you have any ideas for the second equation ?
Originally Posted by ldx2 Thank you very much, i understand it now. Do you have any ideas for the second equation ? It's basically the same drill. Take the cosine of both sides: Now x = 2 satisfies this equation. We can look for other solutions by dividing by if : and since is undefined, the only solution that works is .
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