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Question
State whether the following statement is True or False:
x + 10y + 21 = 0 is the equation of normal to the curve y = 3x2 + 4x - 5 at (1, 2).
Options
True
False
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Solution
False.
Explanation:
At (1, 2) equation of the line x + 10y + 21 = 0 is
(1) + 10(2) + 21 = 1 + 20 + 21 = 42 ≠ 0
i.e., (1, 2) does not lie on line x + 10y + 21 = 0
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