AMU Engineering 2020 solved paper Solved Paper

Section: Mathematics

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Question : 116 of 150

Marks: +1, -0

If f(θ)=5‌cos‌θ+3‌cos(θ+‌

π

3

)+3, then range of f(θ) is

[−5,11]
[−3,9]
[−2,10]
[−4,10]

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