कै (sin90° + cos 60° + cos 45°) X (sin30° — cos 0° + cos 45 – InterviewSolution

1.	कै (sin90° + cos 60° + cos 45°) X (sin30° — cos 0° + cos 45°)i
Answer» (sin90-cos45+cos60)(cos0+sin45+sin30)= (1- 1/(root2)+1/2)(1 +1/(root2)+1/2)= [3/2-1/(root2)]*[3/2+ 1/(root2)]= (3/2)^2 - [1/(root2)^2]= 9/4 - 1/2= (9-2)/4= 7/2

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