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plz. answer this qus. vry soon i have my test today

plz. answer this qus. vry soon i have my test today

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Grade:11

1 Answers

Sandeep Bhamoo
443 Points
4 years ago
The function is maximum when denominator is minimum ie. at x=π/8, fn= 4/1=4, for minimum value of fn denominator needs to be maximum , x=3π/8, fn= 4/5. Hence range is (4/5 ,4) please do approve my answer if correct and wish you all the best for your test

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