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allsm [11]
3 years ago
11

Solve the equation for x.​

Mathematics
1 answer:
yarga [219]3 years ago
6 0

Answer:

-90

Step-by-step explanation:

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\because \sin  \theta =  \cos  \theta  \\   \\ \therefore \: \sin  \theta =  \sin(90 \degree -   \theta)  \\   \\ \therefore \:  \theta =  90 \degree -   \theta \\   \\ \therefore \:   \theta + \theta=  90 \degree \\  \\ \therefore \:  2\theta =  90 \degree \\  \\\therefore \:  \theta =   \frac{90 \degree }{2} \\  \\ \huge \orange{\boxed{\therefore \:   \theta =   45 \degree}}\\  \\

4 0
3 years ago
Can someone help me with this question
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I’m pretty sure you add 78+55= 133
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