Asked by Stephanie
If tan theta equal - square root of 22 divided by 11 and pie/2 is less than theta and theta is less than pies, what is the cos of theta in simplified rationalized form
Answers
Answered by
Stephanie
Negative square root of 22*
Answered by
Steve
Grrrr! <u>pi</u>, <b>not</b> <u>pie</u>!!! Pie is what you eat.
Other than that, why not use real math symbols, instead of all those messy words??
tan θ = -√22/11 and π/2 < π < π
Draw the triangle in standard position.
tanθ = y/x = √22/-11
sinθ = y/r
cosθ = x/r
You will see that
y = √22
x = -11
r = √143
Now you can easily evaluate cosθ and sinθ
Other than that, why not use real math symbols, instead of all those messy words??
tan θ = -√22/11 and π/2 < π < π
Draw the triangle in standard position.
tanθ = y/x = √22/-11
sinθ = y/r
cosθ = x/r
You will see that
y = √22
x = -11
r = √143
Now you can easily evaluate cosθ and sinθ
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