If tan x + cot x=3 prove that tan⁴x + cot⁴x=47
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tan x + cot x=3
squarring both sides,
tan²x+cot²x+2tanx cotx=9
tan²x+cot²x=7 [since tanx cotx=1]
squarring both sides again,
tan⁴x+cot⁴x+2=49
tan⁴x+cot⁴x=47.
Hope it helps...
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squarring both sides,
tan²x+cot²x+2tanx cotx=9
tan²x+cot²x=7 [since tanx cotx=1]
squarring both sides again,
tan⁴x+cot⁴x+2=49
tan⁴x+cot⁴x=47.
Hope it helps...
Please mark it as brainliest
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