Asked by debbie
using the given point (9, squareroot 19) find the value of cosx
Answers
Answered by
MathMate
Given point P(9,√19).
r=sqrt(9²+(√19)²)
=sqrt(81+19)
=sqrt(100)
=10
Cos(θ)=9/10=0.9
r=sqrt(9²+(√19)²)
=sqrt(81+19)
=sqrt(100)
=10
Cos(θ)=9/10=0.9
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