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stira [4]
3 years ago
12

D/dx(sin x/2+cos x) = (a + b cos x)/(2+cos x)^2 find a and b.​

Mathematics
1 answer:
Talja [164]3 years ago
7 0

Answer:

a = 1 and b = 2

Step-by-step explanation:

Using the Quotient Rule>

d/dx[(sin x)/(2+cos x) ]

=   [(2 + cos x) * cosx -  sin x * - sin x)]  /  (2 + cos x)^2

= 2cos x + cos^2x + sin ^2 x) /  (2 + cos x)^2

But cos^2x + sin^2x = 1 so we have:

(1 +  2 cos x)  /   (2 + cos x)^2

- so a = 1 and b = 2.

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alekssr [168]

The measure of the central angle of a circle is 45⁰

<h3>What is Angle?</h3>

A figure which is formed by two rays or lines that shares a common endpoint is called an angle.

Here,

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θ = 15 π / 60 cm

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6 0
1 year ago
Which equation represents an exponential function with an initial value of 500
WITCHER [35]
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3 years ago
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Gre4nikov [31]

Answer:

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