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(Cos 65 - Cos 35) : (Sin 55 - Sin 35) ?

A. 1/2 root 3

B. 1/2 root 2

C -1

D 1

E 0

Guest Apr 4, 2017
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None of the above!

 

cos65 is less than cos35. sin55 is greater than sin35.

 

The result is therefore negative. However it isn't -1, the only negative option offered.

Alan  Apr 4, 2017

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