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Posted by on Thursday, January 8, 2009 at 4:22pm.

If sin(theta)=[sqrt(70)]/7 and theta is in Quadrant two, find the exact numerical value of tan theta without using a calculator.

I got tan(theta)=[sqrt(294)]/42

Is that right?

if sin(theta)=-a where 0<a<1, and theta is in quadrant 3, find the exact algebraic expressionm for cos(theta)

  • simple trig - , Thursday, January 8, 2009 at 4:27pm

    You said
    sin(theta)=[sqrt(70)]/7
    that would make
    sin(theta) > 1 which is not possible

    check your typing

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