Math, asked by Praful1567, 11 months ago

If sec∅-cos∅=2, then sec⁴∅+cos⁴∅=

Answers

Answered by sandy1816

1

Step-by-step explanation:

secA-cosA=2

(secA-cosA)²=2²

sec²A+cos²A-2secAcosA=4

sec²A+cos²A=6

(sec²A+cos²A)²=6²

sec⁴A+cos⁴A+2sec²Acos²A=36

sec⁴A+cos⁴A=34

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