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For all the values of A,B,C and P,Q,R, the value of ∣∣∣∣∣cos(A−P)cos(A−Q)cos(A−R)cos(B−P)cos(B−Q)cos(B−R)cos(C−P)cos(C−Q)cos(C−R)∣∣∣∣∣ is: |
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Answer» For all the values of A,B,C and P,Q,R, the value of ∣∣ |
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