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Math Help - Problem with sine law? I am getting an error for an answer?

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    Problem with sine law? I am getting an error for an answer?

    the problem is \frac{8.43}{sinA}=\frac{42}{sinB}=\frac{c}{sin65}

    so to get the value of c I need to use the cosine law w/c gives me the answer of c=34.544

    If i substitute this value in getting the value of sinA it will be sinA=\frac{(34.544)(8.34)}{Sin65} w/c gives me a wrong answer.

    Help me please.

    The original given is:
    A system cord is knotted at point 0. Determine the angle of the force exerted at cord c. If the mass of the hanging block is A=850g(8.34N) the tension in B=42N (the angle of Cord B is 25 degrees from the X-axis)
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    Quote Originally Posted by honestliar View Post
    the problem is \frac{8.43}{sinA}=\frac{42}{sinB}=\frac{c}{sin65}

    so to get the value of c I need to use the cosine law w/c gives me the answer of c=34.544

    If i substitute this value in getting the value of sinA it will be sinA=\frac{(34.544)(8.34)}{Sin65} w/c gives me a wrong answer.

    Help me please.

    The original given is:
    A system cord is knotted at point 0. Determine the angle of the force exerted at cord c. If the mass of the hanging block is A=850g(8.34N) the tension in B=42N (the angle of Cord B is 25 degrees from the X-axis)
    I'm finding it difficult to understand the question - as written. Be that as it may, my advice is to solve for what you're trying to find by resolving forces in the vertical and horizontal directions.
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