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Differentiation

Section: Mathematics
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Question : 11 of 78
 
Marks: +1, -0
If y(θ)=‌
2‌cos‌θ+cos‌2‌θ
cos‌3‌θ+4‌cos‌2‌θ+5‌cos‌θ+2
, then at θ=‌
Ï€
2
,y′′+y′+y is equal to:
[5 Apr 2024 Shift 2]
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