filmov
tv
cos(x+y) = cosx.cosy - sinx.siny And sin(x+y) = sinx.cosy + cosx.siny
Показать описание
AQ^2 = 2 - 2cosxcosy + 2sinxsiny
BP^2 = 2 - 2cos(x + y)
Equating above two equations we shall get the required result.
Second part of the proof can be obtained by using the identity-
sin^(X) + cos^(X) = 1
#cos(x+y)=cosxcosy-sinxsiny #derivationofsin(x+y)=sinxcosy+cosxsiny
BP^2 = 2 - 2cos(x + y)
Equating above two equations we shall get the required result.
Second part of the proof can be obtained by using the identity-
sin^(X) + cos^(X) = 1
#cos(x+y)=cosxcosy-sinxsiny #derivationofsin(x+y)=sinxcosy+cosxsiny
0:15:42
Prove that 🔥 cos (x + y) = cosx cosy - sinx siny 🔥 Full derivation by #mathemafia
0:02:59
Prove that 🔥 cos (x - y) = cosx cosy + sinx siny 🔥 Simple proof by #mathemafia
0:19:55
Cos(x+y)=Cosx Cosy - Sinx Siny
0:07:25
Trigonometry Proof: cos (x + y) = cos x cos y – sin x sin y (https://youtu.be/b0o_dvFkYbU)
0:05:46
Prove that cos(x+y)=cosx.cosy-sinx.siny
0:09:43
Prove that `cos(x+y)=cosxcosy-sinxsiny`
0:14:19
prove geometrically that cos(x+y) = cosx cosy - sinx siny | 💯 guaranteed question | class : 11
0:02:25
Cos(x-y)=Cosx Cosy + Sinx Siny formula
0:20:13
Trigonometric Functions | 1st PUC 11th CBSE | Mathematics | Part 4 of 10
0:04:45
Using Euler's formula to verify cos(x+y)=cosxcosy-sinxsiny
0:16:55
cos(x+y)=cosx cosy-sinx siny | cos(x+y)=cosx cosy-sinx siny derivation | Trigonometry formula proof
0:15:48
Proving the trigonometric identity Cos(x+y)=cosx cosy -sinx siny. #cbse #maths #class 11
0:11:31
Proof of cos(x+y) =cosx cosy- sinx siny
0:03:34
cos(x+y) = cosx cosy - sinx siny
0:20:04
Prove geometrically that cos(x+y)=cosx cosy - sinx siny in kannada||class 11 Trigonometric Functions
0:04:47
Important Question XI : DERIVATION OF COS(X+Y)=COSX COSY-SINX SINY #mathematics
0:04:54
cos(a+b)=cosa cosb-sina sinb proof || cos(x+y)=cosx cosy-sinx siny proof
0:13:21
Proof of Cos(x+y)= CosxCosy -SinxSiny
0:10:12
SUM & DIFFERENCE FORMULA PROOF |Cos (x+y) = Cos x Cos y - Sin x Sin y |TRIGONOMETRY |CREATA CLAS...
0:15:18
cos(x+y)=cosx.cosy-sinx.siny#class11#Trigonometric Functions
0:10:58
cos(x+y) = cosx.cosy - sinx.siny And sin(x+y) = sinx.cosy + cosx.siny
0:21:09
Trigonometry Proof: cos (x + y) = cos x cos y – sin x sin y, Hindi Explanation Trig Formula Class 11...
0:20:11
Prove That Cos(x-y)=Cosx Cosy + Sinx Siny
0:12:17
{6 MARKS} Derive Cos(x+y)= cosX CosY - SinX SinY
Комментарии