sin^(2) alpha * tan alpha + cos^(2) alph...

`sin^(2) alpha * tan alpha + cos^(2) alpha * cot alpha + 2 sin alpha cos alpha =`

`tan alpha + cot alpha `

`sec alpha + " cosec " alpha `

`sin alpha + cos alpha `

`tan alpha + sec alpha `

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2 sec^(2) theta - sec^(4) theta - 2 "cosec"^(2) theta + " cosec"^(4) t...
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sin^(2) alpha * tan alpha + cos^(2) alpha * cot alpha + 2 sin alpha co...
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