InterviewSolution
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InterviewSolution
| 1. |
prove that sin^[email\xa0protected]+cos^[email\xa0protected] =1 |
| Answer» solution= from LHS = sin^[email\xa0protected]+cos^[email\xa0protected] = (p/h)^2+(b/h)^2 = (p/h×p/h)+(b/h×b/h) = p^2/h^2+b^2/h^2 = p^2+b^2/h^2 = h^2/h^ =1 RHS prove | |