11) For what value of k, do the equations 2x – 3y + 10 = 0 and 3x + ky + 15 = 0 represent coincident lines Class 10 Maths A) \(-9 \over 2\) B) -11 C) \(9 \over 2\) D) -7
For what value of k, do the equations 2x – 3y + 10 = 0 and 3x + ky + 15 = 0 represent coincident lines
\(-9 \over 2\)
-11
\(9 \over 2\)
-7
sin 3 θ+cos3θ = 0, then the value of θ is
If 0° < θ < 90°, the value of sinθ + cosθ is
A train crosses a platform 180 m long in 60 sec at a speed of 72 km/h. The time taken by the train to cross an electric pole is:
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