Is there anything wrong with my solution?

Thread starter Misr
Start date Apr 23, 2010

AI Thread Summary

The solution to the equation Cos X * [Cosec (270+X)][tan X] simplifies to -tan X, confirming its correctness. The identity used, Cosec (270+X) = -sec X, is accurately applied in the solution process. There is no indication of alternative solutions being valid within the discussed framework. The conclusion affirms that the derived answer is indeed correct. Overall, the discussion validates the mathematical approach taken.

Apr 23, 2010

Misr

Homework Statement

Cos X *[Cosec (270+X)][tan X] = ....

Homework Equations

Cosec (270+X) = - sec X
Cos X * sec X = 1

The Attempt at a Solution

Cos X * -Sec X * tan X = - tan X

then the solution is
Cos X *[Cosec (270+X)][tan X] = - tan X

Is it right?Can it has another solution??

Thanks

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Apr 23, 2010

ehild

Science Advisor

Homework Helper

It is right.

ehild

Apr 24, 2010

Misr

Great Thanks

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