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first type theta, then press cos
where is theta
you dont have value for theta is it.. you want to see the graph of cosine ?
you said type theta first
if you have theta = 30, type 30 first
and then press cos, i meant that
cos(theta) = 96/114
ohk ! to solve that, you must take inverse cos
cos(theta) = 96/114 take cos inverse both sides theta = cos^-1 96/114
do u knw how to take cos^-1 in your calculator ? :)
it is not coming out 32.9
im getting 32.64
http://www.wolframalpha.com/input/?i=inversecos%2896%2F114%29 look at degrees above
i didnt have calculator in degrees. thank you
ohh i do that silly mistake always lol.. .:)
does that mean I only need to be in radians if I'm converting to radians.
actually it doesnt matter wat mode we put the answer in as long as we're clear. When the question doesn't say about units, always put it in degrees - default is accepted as degrees by many folks.
32.64 degrees is same as 0.57 radians
so... we're fine when we specify the units explicitly. when the question doesnt bother about degrees/radians, always put the answer in degrees, cuz thats the most accepted form (default)
you're wlcme :)
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