In an AP, The sum of first 11 terms is 44 and that of next 11 terms is 55, find the first term and d

Proof of sum of first n natural numbers

856734521
Change it into international number

What is first world war

My question is maths ch 7 fractions figure it out 1 
Q2 can you create a similar table for 1
                                                                 ....
                                                                   4

I didn't understand 

Please tell me formula of trigonometry 

An observer at a point on the level ground fine set the angle of ellusion of the top of theatres is 45 degrees on walking 20 m directed towards the tower he finds the angle of elevation is 60 degrees find the height of the tower answer?

Sample question papers

If tanA =√2-1,prove that tanA/1+tan^2A=√2/4

54 km/h =________m/s

If sides of a triangle ABC are a b equal to 18 cm BC equal to 34 CM AC equal to 35 cm and altitude ad drawn from a then ad equal to

The number of zero of the polynomial x square - 7x+12 is

marks obtained, out of 100, by the students giving in the frequency table given below:-

 marks obtained
 0-34 
35-50
 51-70 
71-90 
91-100 

number of students 8
 9 14 
11 
8

 1) find the probability of the students getting less than 34 marks

 2) find the probability of the students get between 71 to 90 marks

 3) find the probability of the students getting more than 70 marks

 4) find the probability of the students less than equal to 50 marks

 class 10th solution chapter 14 probability

FIND THE COMPLEMENT of each of the following angles
(1) 43    (2) 15       (3) 62    (4) 38

Differentiate x^sinx w.r.t x

What is  a second name  of satanic friction?

A two digit number is 5 times the sum of its digit and is also equal to 5 more than the product of it digits. find the number 

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MATHS Holiday Assignment Worksheets (1).pdf