# Free Doubts and Solutions

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# Free Doubts and Solutions

### CBSE - XII Science - Mathematics - Continuity and Differentiability

## x=acos^3theta and y=bsin^3theta find d^2y/dx^2.

**gunturiabhishek**18th October 2020, 3:40 PM

### CBSE - VII - Science - Respiration in Organisms

## respiration

**kotireddy1011983**18th October 2020, 3:00 PM

### CBSE - XII Science - Chemistry

## Please solve question 25

**Surendersingh0493**18th October 2020, 2:05 PM

### CBSE - IX - Mathematics - Linear Equations in Two Variables

## In △ABC and △DEF , AB = FD , and ∠A = ∠D . The two triangles will be congruent by SAS axiom if

**riya.yanamandra**18th October 2020, 12:08 PM

### ICSE - IX - Mathematics

## The radius of wheel of a car is 28 cm . Find the number of rotation made by the wheel in order to cover a distance of 4.4 km?

**anshu8958660720**18th October 2020, 11:57 AM

### CBSE - VI - Mathematics - Playing With Numbers

## what is prime number in

**Sumangalaheremath222**18th October 2020, 11:39 AM