A. 100 (√6 +√2) mt
B. 100 (√6 -√2) mt
C. 100/√6 mt
D. 100/√2 mt
In ΔABC, if sin A: sin C = sin (A-B) :sin (B-C), then a2,b2,c2 are in
In a triangle ABC, (a2-b2-c2) tan A+ (a2-b2+c2) tan B is equal to
In ΔABC, r12+r22+r32+r2 =
A man observes that angle of elevation of the top of a tower from a point P on the ground is θ. He moves a certain distance towards the foot of the tower and finds that the angle of elevation of the top has doubled. He further moves a distance 3/4 of the previous and finds that the angle of elevation is three times that at P. Then angle θ is given by
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In ΔABC, if A=900 then r2 +r3 =