Find the distance between point (acosA,asinA) and (-asinA,acosA)
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Answered by
6
As u know distance formula is √[(y2-y1)²+(x2-x1)²]
So
here distance= √[(acosA-asinA)²+(-asinA-acosA)²]
=√[a²(cosA-sinA)²+a²(cosA+sinA)²]
=a√cos²A-2sinAcosA+sin²A+cos²A+2sinAcosA+sin²A
=a√2(cos²A+sin²A)
=a√2
Answered by
2
I do no answer for this question. sorry
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