Trigonometric EquationHard
Question
A couple is of moment 
and the force forming the couple is 
. If is turned through a right angle, the moment of the couple thus formed is 
. If instead, the forces are turned through an angle α, then the moment of couple becomes
and the force forming the couple is . If is turned through a right angle, the moment of the couple thus formed is . If instead, the forces are turned through an angle α, then the moment of couple becomesOptions
A. sin α - cos α
sin α - cos αB. cos α + sin α
cos α + sin αC. cos α - sin α
cos α - sin αD. sin α - cos α
sin α - cos αMore Trigonometric Equation Questions
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