Life
A solution set of the equation 5sin(theta) +3=3 contains all multiples of... i know that the answer is 180, but im not sure how to get it



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nubeer
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5sinx +3 =3
5sinx = 0
sinx = 0
do you know about the sin wave?

Life
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yea, starts at 0 and goes down

Life
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why does this have to do with the sin wave

nubeer
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dw:1353003868370:dw

nubeer
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this is sin wave.. look at which angles the value of sin is 0?

Life
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im lost

Life
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isn't that cos wave?

nubeer
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hmm at what part.. just look at the curve.. just on x=axis line on which angle the value is 0?

nubeer
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nop.. its not cos.. its sin.

Life
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ohhhh 180

nubeer
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dw:1353004137130:dw
this one is cos

Life
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and 360

nubeer
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yes and at 0 angle too.

Life
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yea 0 as well, so what does that mean

nubeer
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well all 3 are possibilities.. and it depends on the range in question.. if not stated then all 3 can be answer.

Life
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there are choices, 90, 135, 45, and 180, so its 180 right?

nubeer
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yes 180 then.

Life
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thanks!