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  • 1 answers

Vivek G 7 years, 2 months ago

sin(x+y)=sinx.cosy+cosx.siny. sin(x-y)=sinx.cosy-cosx.siny. sin(x+y)/sin(x-y)={sinx.cosy+cosx.siny}/{sinx.cosy-cosx.siny}. divide each term by cosx.cosy. :it becomes tanx+tany/tanx-tany
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  • 3 answers

Prakhar Dixit 7 years, 2 months ago

Ayushi ji kaha rahti hai love you

Shivshant Upadhyay 7 years, 2 months ago

Sequence and series which is easy not very tough.

Zehra Mustafa 7 years, 2 months ago

Ch 9 is seq. And series
  • 5 answers

Gagan Choudhary 7 years, 1 month ago

Sory my friends

Gagan Choudhary 7 years, 2 months ago

Break the sin( 3x+2x) and use the identity of sin(A+B)

Prakhar Dixit 7 years, 2 months ago

Shreya singh ji ye log khali time pass karte hain

Udita Singh 7 years, 2 months ago

What is to prove?

Udita Singh 7 years, 2 months ago

Sin 5x= ?
  • 1 answers

Suhani Gupta 7 years, 2 months ago

i) first answer is 5^3 means 125 and (ii) 60
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  • 2 answers

Chirag Kaushik 7 years, 2 months ago

Put r=2/3 and a=729 in s7

Chirag Kaushik 7 years, 2 months ago

Ar6=64 729r6=64 R6=64/729 R=2/3
  • 1 answers

Abhishek Rai 7 years, 2 months ago

Pura question to likho
  • 1 answers

Satyam Kumar 7 years, 2 months ago

Let A&B be two angles of right tr.ABC Then, A+B=90° Also, A-B=20°[given] Solve these two equations to get ans.
  • 1 answers

Chesta Pawan Manchanda 7 years, 2 months ago

m=n/2(2a+(n-1)d) by solving this we get 2m=2an+dn^2-dn --------(1) then by same method 2n=2am+dm^2-dm------(2) from equation 1and 2 we get -2=2a+d(m+n)-1). Now s(m+n)=m+n/2(2a+(m+n)d ) now by equation 3 s(m+n)=-(m+n) hence proved
  • 2 answers

Ria Agarwal 7 years, 2 months ago

Imaginary number means negative number under the square root For example :- square root of -2

Milind Singh 7 years, 2 months ago

Any number 1 to infinity
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Maliaka Thakur 7 years, 2 months ago

=5386(75+6788)-786/40 =5386(6863)-19.65 =36964118-19.65 =36964098.35
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  • 4 answers

Sasi Kumar 7 years, 2 months ago

Y=1/1-x and x=1 y(1-x)=1 y-yx=1 y=yx x=1

Raman Kashyap 7 years, 2 months ago

Google pr search kr answer aa jayrga?

Vishal Malu 7 years, 2 months ago

Sum to infinity terms of g. P a/1-r 1/1-x solving we get answer

Preeti Nyolia 7 years, 2 months ago

Plzz koi solve krdo
  • 1 answers

Shubhanshu Kalkhundiya 7 years, 2 months ago

150-x/x=7:8 7x=1200-8x 15x=1200 X=1200/15=80 Henceforth two parts are 70 and 80
  • 2 answers

Priya Dharshini ☺☺ 7 years, 2 months ago

Practice sums. Understand concepts

Akash Choudhary Dav Gandhinagar 7 years, 2 months ago

Kya pata bhai

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