4500 J = ___ cal
1.075
1072
10.75
107.5
we know,
1 cal = 4.2 joules
1J = 14.2cal
4500 J = 45004.2cal = 1072 cal
The value of sin[2tan−1(0.75)] is
(a) 0.75 (b) 1.5 (c) 0.96 (d) sin 1.5