InterviewSolution
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InterviewSolution
| 1. |
Prove that; cotA-cosA/cotA+cosA=cosecA-1/cosecA+1 |
| Answer» We can write cot A minus Cos A upon cot A + cos A is equal to cosA upon sinA minus CosA.whole upon cos upon sinA + cosA now we will take cosA common from whole equation then we have 1upon sin minus 1 whole upon 1 upon sin + 1 then we know that one upon sin is equal to cosecA minus one whole upon 1 upon sin is equal to cosA plus 1 now we got our answer what we have to prove | |