# Harmonic Mean Questions and Answers PDF Download eBook - 51

Harmonic Mean trivia questions and answers, harmonic mean quiz answers PDF 51 to practice math exam questions for online classes. Practice "Sequences and Series" trivia questions and answers, harmonic mean Multiple Choice Questions (MCQs) for online college degrees. Free harmonic mean MCQs, geometric mean, harmonic progression (hp), trigonometry problems, double angle identities, harmonic mean test prep for online colleges for science.

"H_{1},H_{2},…,H^{n} are said to be n harmonic means between a and b if a,H_{1},H_{2}…,H^{n},b form", harmonic mean Multiple Choice Questions (MCQs) with choices *a.p, h.p, g.p, and harmonic series* for colleges that offer online courses. Practice sequences and series questions and answers to improve problem solving skills for accredited online college courses.

## Trivia Quiz on Harmonic Mean PDF Download eBook

MCQ: H_{1},H_{2},…,H^{n} are said to be n harmonic means between a and b if a,H_{1},H_{2}…,H^{n},b form

- H.P
- A.P
- G.P
- Harmonic series

A

MCQ: 1 + tanαtan2α =

- −sec2α
- −cosec2α
- cosec2α
- sec2α

D

MCQ: Csc²θ/2-cot²θ/2 =

- 1
- −1
- 0
- sec²2θ

B

MCQ: If a and d are the first term and the common difference of the A.P respectively, then the nth term of corresponding H.P is

- a
^{n}= a+(n-1)d - a
^{n}= 1/a+(n-1)d - a
^{n}= a/1+(n-1)d - a
^{n}= a/a+(n-1)d

B

MCQ: If n is the total number of geometric mean between a and b than the nth geometric mean between a and b is

- a(b/a)
^{n/n+1} - a(b/a)
^{m/n+1} - b(a/b)
^{m/n+1} - ab

B