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In any triangle ABC, Prove by vector method c^2=a^2+b^2-2abcosC
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The difference of 2 numbers is 21 and the quotient of the equation is 4 then what are the two numbers?
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What is the value of x in the equation 2(x-4) = 4(2x + 1)?
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Identify the expression equivalent to 4(x + x + 7) − 2x + 8 − 4 by substituting x = 1 and x = 2.
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In any triangle ABC, Prove by vector method c^2=a^2+b^2-2abcosC...
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