If sin A is in 2nd quardrant then when we change it to cos A then will it be in -ve or +ve
Abhishek , 8 Years ago
Grade 11
Trigonometry> If sin A is in 2nd quardrant then when we...
1 AnswersHarsha
Last Activity: 8 Years ago
(x,y)=(rcosA,rsinA) r^2=x^2+y^2. In second quadrant x0.This implies that cosA
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