1
CBSE 12th Mathematics Delhi Set 1 - 2024
Subjective
+2
-0

Find the vector equation of the line passing through the point $(2,3,-5)$ and making equal angles with the co-ordinate axes.

2
CBSE 12th Mathematics Delhi Set 1 - 2024
Subjective
+3
-0

(a) Find $\frac{d y}{d x}$, , if $(\cos x)^y=(\cos y)^x$.

OR

(b) If $\sqrt{1-x^2}+\sqrt{1-y^2}=a(x-y)$, prove that $\frac{d y}{d x}=\sqrt{\frac{1-y^2}{1-x^2}}$.

3
CBSE 12th Mathematics Delhi Set 1 - 2024
Subjective
+3
-0

If $x=a \sin ^3 \theta, y=b \cos ^3 \theta$,then find $\frac{d^2 y}{d x^2}$ at $\theta=\frac{\pi}{4}$.

4
CBSE 12th Mathematics Delhi Set 1 - 2024
Subjective
+3
-0

(a) Evaluate: $\int_0^\pi \frac{e^{\cos x}}{e^{\cos x}+e^{-\cos x}} d x$

OR

(b) Find: $\int \frac{2 x+1}{(x+1)^2(x-1)} d x$

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