# trig

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solve exactly over the indicated interval: cot(theta)=0, all real numbers

• trig -

if cotØ =0
then tanØ is undefined
and we know that the tangent is undefined at π/2 and 3π/2

• trig -

solve over the indicated interval expressed in degrees to 2 decimal places. sec(theta/2)=1.4275, 0<theta<360degrees

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