Math, asked by sm821570, 4 months ago

If f(x) =10 cos x+(13+2x) sin x then f"(x) + f(x) =
Cos x
O
4 Cos x
O
Sin x
O
4 Sin x​

Answers

Answered by Anonymous
0

Answer:

This implies that

x2+2ax=4x−4a−13

or

x2+2ax−4x+4a+13=0

or

x2+(2a−4)x+(4a+13)=0

Since the equation has just one solution instead of the usual two distinct solutions, then the two solutions must be same i.e. discriminant = 0.

Hence we get that

(2a−4)2=4⋅1⋅(4a+13)

or

4a2−16a+16=16a+52

or

4a2−32a−36=0

or

a2−8a−9=0

or

(a−9)(a+1)=0

So the values of a are −1 and 9.

Answered by MohitNariyani
0

Answer:

4cosx

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Step-by-step explanation:

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