Maths-
The normal of the curve given by the equation x = a (sin
+ cos
), y = a (sin
– cos
) at the point Q is -
Maths-General
- (x + y) cos
+ (x – y) sin
= 0
- (x + y) cos
+ (x – y) sin
= a
- (x + y) cos
– (x – y) sin
= 0
- (x + y) cos
– (x – y) sin
= a
Answer:The correct answer is: (x + y) cos
– (x – y) sin
= 0
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