If ??? (?−?)+??? (?−?)+??? (?−?)=(−?)/?
Then ??? ?+??? ?+??? ?= ?
a. 1 b. -1 c. 0 d. 2
=================================
To Join Online Classes for Quant (Maths) , DI , LR (Reasoning) for CAT / SSC / BAKING – https://www.3elearning.in/
To join off line classroom at Ranchi : visit – https://goo.gl/SaezYz
=================================
Learning Anytime Anywhere.
Free and best youtube learning platform, for CAT/ XAT /SNAP/ CMAT/ SSC / BANKING/ Maths By Amiya
=================================
For more JOIN FB GROUP – https://www.facebook.com/groups/MBAMathsByAmiya/
LIKE – https://www.facebook.com/MathsByAmiya
Telegram Channel : https://t.me/mathsbyamiya
To Join Telegram Group: https://t.me/joinchat/F_j9Dw9Mgi6Je4JSoUd9AQ
Website: www.3elearning.in
Twitter: https://twitter.com/3Eamiya
Best Maths Questions, Best Maths Questions for CAT, SNAP, IIFT, XAT CLAT, SSC, UPSC, BANKING, PO, SBI, SSC CGL , SAT, GMAT, GRE
source
Ans is 0
X=180 Y=60 Z=-60
-1
0
zero is the right answer
0
0
0
3+2{cos(x-y)+cos(y-z)+cos(z-x)=0
1+1+1+2{cos(x-y)+cos(y-z)+cos(z-x)=0
[1= sin^2x+cos^2x] in general we know
further,
on solving we get,
{ (cosx+cosy+cosz)^2+(sinx+siny+sinz)^2}=0
which is only possible when each of them will be 0 indivually
so the final ans is 0(zero)
0
0
A trick with concept will really be so helpful for us. Thank you Amiya sir.
Sir daily challenger question ka video upload kijie
Answer will be (0)
Source- Ncert 12th… Don't take ncert easy, it's totally game of basics…thank u sir 🙏🏻
Sir isko aise bhi kr skte hain kya jaise cos(x-y)=-1/2 aur isi trh sbko kre to cos(x-y)=cos120 then x-y=120 y-z=120 z-x=120 after solving these equation we found x=300 y=180 and z=60 and ab in values ko jo pucha hai wha put krne pe 1/2-1+1/2=0 aa rha…..plzz btaiyega sir shi h ya nhi ?
c
Sr golden formula wali series aur layie
B) -1
0
Good one sir….😍
1
12 th math me hai quest
0
sir if we put x-y = 120 nd others also lyk dis we get ans by it also
Thnxx sir
Really sir you are the best 🙏🙏
Sir ur methods are really lengthy and very difficlt othr teachers do this sum very easily
0
we can also put the values 360,240,120……respectively