1 year ago

X²=9 determine if x belongs to Q or belongs to Q dash

Mathematics

1 answer:

Elis [28]1 year ago

4 0

x = 3 is the answer can you pls add me brainliest answer

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Find the value of csc theta, if cos =-3/5; 90 degrees < theta < 180 degrees

Sloan [31]

Answer: $\frac{5}{4}$

Step-by-step explanation:

Given

$\cos \theta =\frac{-3}{5}$

and $\theta$ lies between

$90^{\circ}$

and for this $\theta$ , $\sin$ and $\text{cosec}$ is Positive as they lie in 2 nd Quadrant

$\sin ^2\theta +\cos ^2\theta =1$

$\sin ^2\theta =1-(\frac{-3}{5})^2$

$\sin ^2\theta =1-\frac{9}{25}$

$\sin ^2\theta =\frac{16}{25}$

$\sin \theta =\frac{4}{5}$

$\therefore \text{cosec}\ \theta =\frac{5}{4}$

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2 years ago

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Step-by-step explanation:

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2 years ago

Read 2 more answers

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The answer is 32
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Mr. Baker wants to divide his class into smaller, equal-sized groups of students.However, he finds that his class cannot be divi

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2 years ago

X²=9 determine if x belongs to Q or belongs to Q dash​

X²=9 determine if x belongs to Q or belongs to Q dash