Question

√tan⁴A+cot⁴A+2 =........
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Answer 1

Step-by-step explanation:

tanA .cotA =1 as

tanA =sinA/cosA and cotA =cosA/sinA

and tanA.cotA =sinA/cosA×cosA/sinA which is equal to 1

so 2 can be written as 2 × 1 where 1 can be written as tanA. cotA

and using square formula it can be simplifief