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q. no. 1

Asked by 21st July 2012, 11:06 AM
Answered by Expert
Answer:
tan245 -cos230 = x sin 45 cos 45 
1 - (root 3/ 2)2 = x (1/ root 2) (1/ root2)
1 - (3/ 4) = x (1/ 2)
1/4 = x/2
x = 1/2
Answered by Expert 22nd July 2012, 8:55 PM
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