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08-05-2021
Mathematics

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Here is the other one.................

Here is the other one class=

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08-05-2021

Answer:

2+2sec2∅tan²∅-sec⁴∅-tan⁴∅
2+2sec2∅tan²∅-sec⁴∅-tan⁴∅)
2-(sec⁴∅-2sec∅tan∅+tan⁴∅)
2-(sec²∅-tan²∅)²
2-(1)²
1 is a required answer.

[Note sec²x-tan²x=1]

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