Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 11-science Answered

sin25+sin210+sin215+......+sin2180
Asked by karthikeyainuguri2009 | 10 Apr, 2022, 03:01: PM
answered-by-expert Expert Answer
To find sin25 + sin210 + sin215 + ... + sin290 + sin295 + sin2100 + ... +sin2180
sin squared 5 plus sin squared 10 plus... plus sin squared 85 plus sin squared 90 plus sin squared left parenthesis 180 minus 85 right parenthesis plus sin squared left parenthesis 180 minus 80 right parenthesis plus... plus sin squared left parenthesis 180 minus 5 right parenthesis plus sin squared 180 equals sin squared 5 plus sin squared 10 plus... plus sin squared 85 plus sin squared 90 plus cos squared 85 plus cos squared 100 plus... plus cos squared 5 plus sin squared 180 equals open parentheses sin squared 5 plus cos squared 5 close parentheses plus open parentheses sin squared 10 plus cos squared 10 close parentheses... plus open parentheses sin squared 85 plus cos squared 85 close parentheses plus sin squared 90 plus sin squared 180 equals stack stack 1 plus 1 plus... plus 1 with underbrace below with 85 space times below plus 1 plus 1 equals 87

sin25+sin210+sin215+......+sin2180

Answered by Renu Varma | 11 Apr, 2022, 10:50: AM

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 11-science - Maths
cos 1710
Asked by SasipriyaNagappan | 27 Jul, 2023, 07:22: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Maths
sin25+sin210+sin215+......+sin2180
Asked by karthikeyainuguri2009 | 10 Apr, 2022, 03:01: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Maths
Show that sum of 9 Sin4 θ - 6 Sin6 θ and 9 Cos4 θ - 6 Cos6 θ  remains constant for all values of θ.
Asked by nareshpanchal76 | 07 Oct, 2020, 10:13: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Maths
if sintita +costita =1/5 and 0≤thita
Asked by sravikakanneganti | 19 Sep, 2020, 05:26: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Maths
Find the values of x for which it satisfies tanx = cot 5 x as well as sin 2x = cos 4x [x€ (-π/2,π/2)]
Asked by sajal2402 | 30 Jul, 2019, 11:19: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Maths
Sin (90-thita) 
Asked by Divyataak1984 | 24 Jun, 2019, 08:38: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Maths
pls solve
question image
Asked by pb_ckt | 14 Jun, 2019, 11:20: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Maths
pls solve
question image
Asked by pb_ckt | 14 Jun, 2019, 11:19: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Maths
cosec x (sec x - 1) - cot x (1 - cos x) = tan x - sin x Prove the Following Identity.
Asked by Anish | 16 Jun, 2018, 08:38: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Maths
F I N D space T H E space V A L U E space O F space cos left parenthesis negative fraction numerator 5 straight pi over denominator 12 end fraction right parenthesis
Asked by Topperlearning User | 31 Aug, 2016, 09:36: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×