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Learn Harmonic Mean trivia questions and answers, harmonic mean worksheets with answers PDF 51 to practice College Math exam questions for online classes. Practice Sequences and Series MCQ questions, harmonic mean Multiple Choice Questions (MCQ) for online college degrees. Harmonic Mean Quizzes PDF: 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 (MCQ) with choices *a.p, h.p, g.p, and harmonic series* for colleges that offer online courses. Learn sequences and series questions and answers to improve problem solving skills for accredited online college courses.

1.

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

2.

1 + tanαtan2α =

−sec2α

−cosec2α

cosec2α

sec2α

d

3.

Csc²θ/2-cot²θ/2 =

1

−1

0

sec²2θ

b

4.

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

5.

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

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