trig

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Use an addition or subtraction formula to write the expression as a trigonometric function of one number:
tan75degrees-tan15degrees/1+tan75tan15=tanAdegrees =square root B

Its asking for the value of A and B. I know A =60 degrees, what I can't figure out is B, I don't understand what its asking for

  • trig -

    draw a right triangle, 2,1, sqrt3

    What is the tan of 60 deg?

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