Asked by pankaj
If sin theta =a/b and theta lies in first quadrant, find all t-ratios.
Answers
Answered by
Reiny
given:
sinØ = a/b
so y = a , x = ?
r = b
r^2 = x^2 + y^2
b^2 = x^2 + a^2
since we are in quad I,
x = +√(b^2 - a^2)
now use your definitions to state the trig ratios
sinØ = a/b
so y = a , x = ?
r = b
r^2 = x^2 + y^2
b^2 = x^2 + a^2
since we are in quad I,
x = +√(b^2 - a^2)
now use your definitions to state the trig ratios
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