class 11

Math

Co-ordinate Geometry

Straight Lines

The number of values of k, for which the system of equations$(k+1)x+8y=4k$$kx+(k+3)y=3k−1$has no solution, is

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$117 :110336 :?:272720 $

A water tank has steps inside it. A monkey is sitting on the top most step. (ie, the first step) The water level is at the ninth step.(a) He jumps $3$ steps down and then jumps back $2$ step up. In how many jumps will he reach the water level?(b) After drinking water, he wants to go back. For this, he jumps $4$ steps up and then jumps back $2$ steps down in every move. In how many jumps will he reach back the top step?

There is a specific relationship between the numbers that are given in the following figures. On the basis of the relationship choose the correct alternative to replace the question mark.

If $9@3=12,15@4=22,16@14=4$, then what is the value of $6@2=?$

Find derivative of:$y=cos(cx+d)sin(ax+b) $

Directions for questions 1 to 3: Find the related word/ letters/numbers from given alternatives.12:72::8:?

In a certain language $_{′}+÷?_{′}$ means 'where are you' , $_{′}@−÷_{′}$ means ' we are here' , and $_{′}+@×$ means ' you come here' What is the code for ' Where' ?