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secondary 3 | A Maths
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I don't understand Qn 2 Can Someone Explain to me by 11pm ,Tks a lot
Date Posted: 6 years ago
Views: 354
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Date Posted:
6 years ago
Thank you so much (≧▽≦)
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A tangent touches a curve only at one point. Hence, if you use simultaneous equation to solve for the intersection point, you will get real and equal root. For real and equal root, b^2-4ac=0. Hence, if you can show that D=0, you have proven that the line is a tangent for all values of k.
Date Posted:
6 years ago
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