3 years ago

Pictures below. Find x.

Mathematics

1 answer:

denis-greek [22]3 years ago

8 0

Hope this helps u...!!

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AlladinOne [14]

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Step-by-step explanation:

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Elena-2011 [213]

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I don't see the photo. Can't help OOF

Step-by-step explanation:

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3 years ago

Help me plz u will make my day

iris [78.8K]

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K=13

Step-by-step explanation:

So first, we subtract 13 with 3/4 (That comes from 4 3/4) and we get 12 1/4.

And then, we subtract 12 1/4 with 4, and we get 8 1/4

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3 years ago

Prove that 1/sin^2A -1/tan^2A= 1

Vika [28.1K]

Answer:

Step-by-step explanation:

$LHS =\dfrac{1}{Sin^{2} \ A }-\dfrac{1}{Tan^{2} \ A }\\\\\\ = \dfrac{1}{sin^{2} \ A}- \dfrac{1}{\dfrac{Sin^{2} \ A}{Cos^{2} \ A}}\\\\\\= \dfrac{1}{sin^{2} \ A } - \dfrac{Cos^{2} \ A}{Sin^{2} \ A}\\\\\\= \dfrac{1-Cos^{2} \ A}{Sin^{2} \ A}\\\\\\= \dfrac{Sin^{2} \ A}{Sin^{2} \ A}\\\\\\= 1 = \ RHS$

Hint: 1 - Cos² A = Sin² A

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3 years ago

Anyone know the answer?

Brut [27]

Check out the picture I've got the full explanations on there
Hope it's clear

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3 years ago