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msingh
 2 years ago
plse solve this
msingh
 2 years ago
plse solve this

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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