Answer:
c. um sujeito e um núcleo is correct option in the given problem statement.
4 sinx / cosx * cosx
4 tanx / cosx Trig identity tanx = sinx/cosx
number of different pairs the teacher can choose= nCr (18+14, 2)=496
no. of opposite gender pairs possible= 14 (since there are only 14 boys)
probability = 14/496= 7/248
M=0.09 mol/L
Explanation:
M=mol/volume
M=0.06 mol/0.656 L(convert 656 ml to L by ÷ by 1000)
of
B