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Naddika [18.5K]
3 years ago
15

Sin(2x+30°)=1 Tìm x Cảm ơn vì giúp đỡ

Mathematics
1 answer:
Pie3 years ago
4 0

Answer:

Step-by-step explanation:

This question is asking us to find where sin(2x + 30) has a sin of 1. If you look at the unit circle, 90 degrees has a sin of 1. Mathematically, it will be solved like this (begin by taking the inverse sin of both sides):

sin^{-1}[sin(2x+30)]=sin^{-1}(1)

On the left, the inverse sin "undoes" or cancels the sin, leaving us with

2x + 30 = sin⁻¹(1)

The right side is asking us what angle has a sin of 1, which is 90. Sub that into the right side:

2x + 30 = 90 and

2x = 60 so

x = 30

You're welcome!

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Step-by-step explanation:

Remark

This is just the reverse of the question you just did. This time you are trying to solve for c

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