If y = 3 ,sin ,x + 4 ,cos ,x then find the maximum value of y - Vidyadip

MCQ

If $y = 3\,sin\,x + 4\,cos\,x$ then find the maximum value of $y$

A
$-5$
✓
$+5$
C
$7$
D
$1$

✓

Answer

Correct option: B.

$+5$

b
$y =\sqrt {3^2+4^2}= 5$

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