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If SecA * SinA equals 0, it implies that either SecA or SinA is equal to 0. Since SecA is the reciprocal of CosA, if SecA is 0, then CosA will be undefined. However, if SinA is 0, then CosA will be either 1 or -1 depending on the quadrant in which angle A lies.

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secA(sinA)=0

(1/cosA)(sinA)=0

tanA=0

Therefore A is in 1st or 3rd Quadrant

i.e A=0 Degrees, 180 Degrees....

This yields cosA=1 or cosA=-1

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Wiki User

14y ago
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Q: If SecASinA equals 0 then what will be the Value of CosA?
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