![How to derive the formula [math]\sin (x+y) = \sin(x)\cos(y) + ...](img.php?q=tbn:ANd9GcR2haMrbajCT1dyya78HQ-1Dzmhj29PpgEvkgJqFt3Q6CrvLUZ-_XKohQIL&s)
28 дек. 2017 г. · sin x= sin y sin x-siny =0 2cos [( x+y)/2] sin [(x-y)/2] cos (x+y)/2=0 or sin (x-y)/2=0. general formula. (x+y)/2 = (2n+1)π/2. |
15 июл. 2023 г. · If sin x = -sin y then sin (x)=sin(-y) so for any value of x there is a value of -y=x then the possible values of x and y are x=0 to pi/2 ... |
13 мар. 2018 г. · As sinx=siny We take x=sin^-1y So sinx-siny=0 2cos(x+y/2)sin(xy/2)=0 Equating coeff. To zero.. We get 2cos(x+y/2)=0 ; sin(xy/2 |
1 нояб. 2018 г. · If sinx=siny, then can we write x=y by cancelling sin function on both sides? If not, what can we write from that? All related ( ... |
17 мая 2023 г. · But sin(π/6)= 1/2 so sin(x)+ sin(y)= 1/2+ 1/2= 1. sin(x+ y) DOES NOT equal sin(x)+ sin(y)! |
10 мая 2018 г. · The key observation is. sin(x)+sin(y)=2sin(x+y2)cos(x−y2) sin ( x ) + sin ( y ) = 2 sin ( x + y 2 ) cos ( x − y 2 ). Now x+y=2π/3 x ... |
21 авг. 2015 г. · If you do the Taylor series expansion on the lefthand side of the expression, you will get (x - y)((sin x)/x - (sin y)/y) < x - y, so if (sin x)/ ... |
16 февр. 2016 г. · If you mean the reciprocal, write 1sinx 1 sin x or cscx csc x . If you mean repeated applications of the sine function (as is sometimes ... |
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