Mathematics: Please help I will give brainliest

Please help I will give brainliest - id13591913, igtguith

Ответ:

nkazmirski3229

02.07.2021

Mathematics

Step-by-step explanation:

$sin^2\theta+cos^2\theta=1~=sin\theta=\pm\sqrt{1-cos^2\theta}\\\\cos\theta=\frac{\sqrt{2}}{2}$

we'll took the negative solucion of sin because sin is negative in IV cuadrant

$sin\theta=-\sqrt{1-(\frac{\sqrt{2}}{2})^2}=-\frac{1}{\sqrt{2}}=-\frac{\sqrt{2}}{2}$

$tan\theta=\frac{\sin\theta}{\cos\theta}$ => $tan\theta=-1$

so, the right option is the last one

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Ответ:

jonmorton159

23.04.2022

Mathematics

She can change her drink by increasing the amount of both the water and the powder because if she added powder only the water won’t be able to take more then it’s meant to so if u increase water u can increase the amount of water. Hope this answer helps u :)

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Please help I will give brainliest

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