Find the sum S30 of the first 30 terms of 80-40+20-10+........ (round to two decimal places) S30-

Q: Find the sum of 1510 + 1520 + 1530 + ... + 2010 + 2020

A: From the provided information, The first term of the series (a1) = 1510 The difference (d) = 1520 –…

Q: Find the sum of the first n terms of:

A: Sum of n terms of geometric seriesSn=a(rn-1)r-1where a= first termr=common ration= number of term

Q: Find the sum of the first 15 terms of the arithmeticsequence with first term -4 and common…

A: Consider the given information as a=-4 and d=2

Q: + 3 + sŹ + 8 t..,, to 50 TERMS

A:

Q: Find the sum of the first 40 terms of the sequence 9, 18, 27, 36, ...

A: 9, 18, 27, 36, ........ It is an arithmetic sequence with, First term=a=9Common difference=d=9

Q: Find the sum of 1 + 3 + 9 + 27 + … to 12 terms.

A: =1+3+9+27+...+n.  in this a1=1,a2=3            r=a2/a1=3/1=3            s=(a(rn -1))/(r-1)…

Q: Calculate the first 5 terms of the sequence an = Factions and as decimals to 3dp. (1+)", expressing…

A:

Q: The partial sum - 2 + ( – 4) + (– 8) + · · · + ( – 64) equals

A: A sequence is a function with domain being the set of natural numbers and the range being the set of…

Q: 5 2² Find the sum of the first 8 terms in the sequence 5, 10, 20,....

A: I am attaching image so that you understand each and every step.

Q: The partial sum 1+5+9+ + 141 equals

A: The partial sum 1 + 5 + 9 +......…...+141 equals

Q: How do you find the nth root of complex numbers and provide an example?

A: To find the nth root of a complex number first convert it into a trigonometric form. z=r [cos θ +i…

Q: Find the sum of1/1 · 3 +1/3 · 5 +1/5 · 7 +··· .

A: The given series is, 11.3+13.5+15.7+..... Consider the first term, 11.3=12×1-12×1+1 Consider the…

Q: Find the sum of the first 100 terms in the arithmetic series 1+2+ 3+4 + ... + 100.

A: To find the sum of first 100 terms of given arithmetic  series.

Q: find the sum of the first 10 terms of geometric progression 2x,4x+14, 20x-14

A: Geometric progression: A sequence in which the next term is produced by multiplying a fixed number…

Q: Find for the sum of the first 70 multiples of 3.

A:

Q: Find the sum of the first 10 terms of the geometric progression 2, 4, 8, 16 …

A: To find the sum of the first 10 terms of the geometric progression 2, 4, 8, 16 ...

Q: Find the sum 3 + 6 + 12 + 24 + ... + 3(2)^10

A: The given series is 3+6+12+24+...+3(2)10.