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Bas_tet [7]
3 years ago
10

HELP ME PLEASE PLEASE PLEASE

Mathematics
1 answer:
nika2105 [10]3 years ago
4 0

Ans

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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b-2

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Solve:<br> sin5x - cos2x + sin x = 0.
mote1985 [20]

Answer:

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Step-by-step explanation:

This seems a tricky one .

I guess we can use   sin A + sin B =  2 sin (A+B)/2 cos (A - B) / 2

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giving 3x = 30 degrees and x = 10 degrees

or cos 2x = 0

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