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CGP EDU Academic Team
Published on: August 14, 2026
Let y = mx + c,m> 0 be the focal chord of y 2 = −64x, which is tangent to (x + 10) 2 + y 2 = 4. Then, the value of 
is equal to ___
Text Solution
Verified by ExpertsThe correct answer is:
34
(34)
y 2 = −64x
focus :(−16, 0)
y = mx + c is focal chord
⇒ c = 16 m
y = mx + c is tangent to (x + 10) 2 + y 2 = 4
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