Question 672297
If tan(t)=x and t is in quadrant I, how would you use a right triangle to find expressions for sin(t) and cos(t) in terms of x?
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tan>0 in quadrant I
tan(t)=x=opp side/adj side=x/1
hypotenuse=√(x^2+1^2)=√(x^2+1)
sin(t)=opp side/hypotenuse=x/√(x^2+1)
cos(t)=adj side/hypotenuse=1/√(x^2+1)