Answer:
solution
given=3a+3a^2+3a^3+....+...+...3an
first term(t1)=3a
second term(t2)=3a^2
third term(t3)=3a^3
for arithmetic mean ,d1=d2
d1=t2_t1=3a^2_3a=3a(a_1)
d2=3a^3_3a^2=3a^2(a_1)
here d1 is not equal to d2.
so it's not an arithmetic series.
Again,for geometric mean,r1=r2
r1=d2/d1=3a^2/3a=a
r2=d3/d2=3a^3/3a^2=a
here ,r1 is equal to r2.
so ,it's an geometric series.
Answer:
x < 7/12
Step-by-step explanation:
1/4 + x < 5/6
x < 5/6 - 1/4
x < 5*2/6*2 - 1*3/4*3
x < 10/12 - 3/12
x < 7/12
The answer to your question is 13 divide by 2.5 = 5.2
Answer:
Step-by-step explanation:
Given:
The expression is
13\sqrt {22b}-10\sqrt{22b}, b>0
To find:
The equivalent expression.
Solution:
We have,
13\sqrt {22b}-10\sqrt{22b}
Taking out common factors.
=(13-10)\sqrt {22b}
=(3)\sqrt {22b}
=3\sqrt {22b}
The expression 3\sqrt {22b} is equivalent to the given expression.
