Step-by-step explanation:

where n is an element of Integer
* the values of sinx intersects the x-axis when sinx=0
for example:
sin0°=sin180°=sin360°=0
(x^4)(3x^3-2)(4x^2+5x)
=(3x^7-2x^4)(4x^2+5x)
=12x^9+15x^8-8x^6-10x^5
answer: 12x^9+15x^8-8x^6-10x^5
Answer:
a) {P1P2, P1N, P1D,P2P1, P2N,P2D,NP1,NP2,ND,DP1,DP2,DN}
PP=2/12 NP=4/12 DP=4/12 DN=2/12
b) 1/3
Step-by-step explanation:
Let us call pennies by P1 and P2.
a)There are 12 possible outcomes as it is written above.
b)In order to have 11 cents we need a penny and the dime. There are 4 such possibilities (events). The total number is 12. So the probability is 4/12.