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oksano4ka [1.4K]

3 years ago

10

Simplify the following functions so that your answers do not include trig functions. In each case, assume x∈(−1,1). cos(2sin−1x−

π2)

1 answer:

Roman55 [17]3 years ago

3 0

Answer:

cos(2sin−1x)=1−2x2

Step-by-step explanation:

et sin−1x=θ , so that, x=sinθ,|x|≤1,θ∈[−π2,π2].

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Which statement is true about 68 and 112?

mylen [45]

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Makovka662 [10]

In this question , it is given that , the width of a rectangle is 6 2/3 inches.The length of the rectangle is twice its width.

First we need to convert mixed fraction to improper fraction.

$width = 6 \frac{2}{3} = \frac{20}{3}$

And length is twice of width, so length is

$length = 2* \frac{20}{3} = \frac{40}{3}$

The formula of perimeter is two times the sum of length and width.

$Perimeter = 2(\frac{20}{3} + \frac{40}{3} ) = 2( \frac{60}{3}) = 2*20 = 40 inches$

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Step-by-step explanation:

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Diano4ka-milaya [45]

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