Muskan

This page lists questions and answers that were posted by visitors named Muskan.

Questions

The following questions were asked by visitors named Muskan.

make a poem on rain, first word of all lines verticaly MUSKAN Like: M................. U.................. S................... k.................... A.................... N...................

Chandini purchased some parrots.20% flew away 5%died. Of the remaining 45%were sold. Now 33 parrots remain. How many parrots had chansini purchased?

Why Delhi is known as union territory?

A heat engine operating between a cold reservoir temperature of 300K and a hot reservoir takes 200J of heat from the hot reservoir and delivers 120J of heat to the cold reservoir in a cycle. The minimum temperature of the hot reservoir is :

Radius of a circle,13cm. Length of the chords is 10cm find the distance of the chord from the center of a circle

Construct a qadilateral abcd, given that ab=4cm , cd=4.5cm,ad=5cm,angle a=70degree and angle d=12odegree

An ice skating competition features 8 skaters. How many different ways can the skaters finish the competition? How many different ways can 3 of the skaters finish first, second and third?

Answers

The following answers were posted by visitors named Muskan.

= (cosx+cos3x)-cos2x/(sinx+sin3x)-sin2x = 2cos2xcosx-cos2x/2sin2xcosx-sin2x (applying CD formulaes of sin and cos) = cos2x(2cosx-1)/sin2x(2cosx-1) = cos2x/sin2x = cot2x

I don't know the answer please solve this

The answer will be M/2(R2+r2)

This given answer doesn't satisfy me because it does not give the answer for why

Answer the above question

Please solve this question i want to need urgent

First we will find the HCF of 180 and 252 by using Euclid's division lemma . 252 = 180 x 1+72 180=72 x 2+36 72=36x2+0 So, HCF of 180 and 252 is 36. Then we will find HCF of 324 and 36. 324=36x9+0 So, HCF of 36 and 324 is 36. Hence, the HCF of 180, 252 and...

I still didn't understood where's the solution?