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PilotLPTM [1.2K]
3 years ago
15

? What is the asthenosphere? Select all that apply.

Mathematics
2 answers:
Basile [38]3 years ago
6 0

Answer:part of the earths crust and part of the earths core

Step-by-step explanation:

dezoksy [38]3 years ago
3 0

Answer:

the answer is ( 2 ) Part of the Earth's mantle

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A. Show
nydimaria [60]

a. Recall the double angle identities:

\sin^2x=\dfrac{1-\cos2x}2

\cos^2x=\dfrac{1+\cos2x}2

Then

\sin^2x\cos^2x=\dfrac{(1-\cos2x)(1+\cos2x)}4=\dfrac{1-\cos^22x}4

Applying the identity again, we have

\sin^2x\cos^2x=\dfrac{1-\frac{1+\cos4x}2}4=\dfrac{2-(1+\cos4x)}8=\dfrac{1-\cos4x}8

as required.

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\sin^2x\cos^2x=\dfrac{1-\cos4x}8=\dfrac{2-\sqrt2}{16}

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\implies4x=\dfrac\pi4+2n\pi\text{ or }4x=-\dfrac\pi4+2n\pi

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