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ajprincess
 one year ago
Best ResponseYou've already chosen the best response.2\[\theta=\cos^{1}\frac{\sqrt3}{2}\] \[\cos\theta=\frac{\sqrt3}{2}\] So vat is the value of \(\theta\)? @msingh

ajprincess
 one year ago
Best ResponseYou've already chosen the best response.2well ya. but there is another value.

apple_pi
 one year ago
Best ResponseYou've already chosen the best response.1why do you need to find theta? It's just cos(A+B)

ajprincess
 one year ago
Best ResponseYou've already chosen the best response.2\[\cos(\frac{5\pi}{6}+\frac{\pi}{4})=?\]

ajprincess
 one year ago
Best ResponseYou've already chosen the best response.2nw as @apple_pi mentioned u can use \(\cos(A+B)=\cos A\cos B\sin A\sin B\).

apple_pi
 one year ago
Best ResponseYou've already chosen the best response.1@ajprincess why did you find theta? You could just leave it as acos(...), then cos(acos(...)) would cancel and then use pythagorus to find sin(acos(...))

ajprincess
 one year ago
Best ResponseYou've already chosen the best response.2well i found it easy to find theta first nd then do..:)

apple_pi
 one year ago
Best ResponseYou've already chosen the best response.1ok whatever suits you :p

msingh
 one year ago
Best ResponseYou've already chosen the best response.0@ajprincess can u plse tell me exact answer

ajprincess
 one year ago
Best ResponseYou've already chosen the best response.2Well i am really sorry. I am nt supposed to give direct answers. pls check the code of conduct

ajprincess
 one year ago
Best ResponseYou've already chosen the best response.2dw:1367584877456:dw

ajprincess
 one year ago
Best ResponseYou've already chosen the best response.2plug in the values nd simplify

msingh
 one year ago
Best ResponseYou've already chosen the best response.0yes, after this, i m getting cos(5pi/6)sin(5pi/6)

msingh
 one year ago
Best ResponseYou've already chosen the best response.0oh again i did wroong i place 1 as it is 1/ root2

ajprincess
 one year ago
Best ResponseYou've already chosen the best response.2what are cos(5pi/6),sin(pi/4) and sin(5pi/6)?

msingh
 one year ago
Best ResponseYou've already chosen the best response.0root3/2 1/root2 root3/2

ajprincess
 one year ago
Best ResponseYou've already chosen the best response.2first two values are right. chck the last one

ajprincess
 one year ago
Best ResponseYou've already chosen the best response.2nw plug in those values and simplify

msingh
 one year ago
Best ResponseYou've already chosen the best response.0i got (1/2root2)*(root31)
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