jussttbre
Verify the identity. Justify each step.



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jussttbre
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Mimi_x3
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well you know that tanx = sinx/cosx and cotx = cosx/sinx

anonymous
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add
\[\frac{b}{a}+\frac{a}{b}\]

Mimi_x3
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\[\frac{sinx}{cosx} +\frac{cosx}{sinx} \] then simplify it

jussttbre
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how do i simplify that?

Mimi_x3
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\[\frac{sinx*sinx}{cosx*sinx} +\frac{cosx*cosx}{sinx*cosx} \]
and Note the fact that;; sin^2+cos^2x = 1

jussttbre
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so the answer is 1?

Mimi_x3
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why not try it first; simplify it
ithe answer cannot be 1