Answer: 4ab^2 +20b - 3 -3a
Combine like terms.
Combine ab, b, a terms for #1
Combine x^3, x^2, x terms for #2
Answer:
4
Step-by-step explanation:
2+2=4
You have to find the cos of angle A, so use the Pythagorean equation and trig laws to find the other side of the triangle created by angle A. 3^2 + x^2 = 5^2. x=4. This means cos(A) = 4/5). Make both cos (A) and cos (B) have equal denominators, and add. 148/185 + 60/185 = 208/185. This answer is correct, though it doesn’t appear to be any of the answers you wrote, so either those answers are wrong or you wrote something incorrectly in the problem.
A geometric sequence deals with multiplying...u have to multiply by a common number to get the next number
1/4 * 2 = 1/2
1/2 * 2 = 1
1 * 2 = 2
2 * 2 = 4
so ur geometric sequence is : 1/4, 1/2, 1, 2, 4...with a common ratio of 2
A number has fixed number of factors but infinite number of multiples
Ex:-
Take a number 12
It has factors 1,2,3,4,6,12
It is fixed.
But
It has multiples 12,24,36,48,60...
It is infinite
