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CBSE Class 11-science Answered

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Asked by nitishkrnehu09 | 10 Dec, 2017, 10:33: PM
answered-by-expert Expert Answer
begin mathsize 16px style 3 sinA plus 4 cosB equals 6 space and space 4 sinB plus 3 cosA equals 1 open parentheses 3 sinA plus 4 cosB close parentheses squared plus open parentheses space 4 sinB plus 3 cosA close parentheses squared equals 6 squared plus 1 squared After space solving space this space equation space you space get space sinC equals 1 half straight C space equals space 30 degree space or space 150 degree But space cosA less or equal than 1 third space Hence comma space straight A greater than 60 degree space and space straight C space cannot space be space 120. straight C equals 30 degree end style
Answered by Sneha shidid | 11 Dec, 2017, 10:22: AM

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CBSE 11-science - Maths
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Asked by nityaboragam | 11 Apr, 2024, 12:14: PM
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CBSE 11-science - Maths
find the value of 2sin square 3pie by 4+3cos square 3pie by4-2tan square 3pie by 4
Asked by rajyothi64 | 05 Mar, 2024, 09:49: PM
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CBSE 11-science - Maths
Prove that:sin²0+sin²Π÷2+sin²π÷3+sinπ÷2=2
Asked by surekhashriwas01 | 12 Sep, 2023, 08:39: PM
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CBSE 11-science - Maths
X tan^2 45 cos 60= sin 60 cot 30
Asked by vinay123chintu | 08 Jun, 2023, 08:41: PM
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CBSE 11-science - Maths
Cos2a+cas2b+cos2c+1+4cosa+cos2b+cos2c=0
Asked by soumyadas098h | 02 Nov, 2022, 08:01: PM
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CBSE 11-science - Maths
cos^2 5@+ cos^2 10@+cos^2 15@...........+cos^2 180@
Asked by vermahiteshi243 | 30 Aug, 2021, 09:53: AM
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CBSE 11-science - Maths
cos square (60-x) +cos square (60+x) belongs to
Asked by bandlapravalika4 | 25 Sep, 2020, 01:32: PM
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CBSE 11-science - Maths
Find the general solution of sin 2x = -1/2
Asked by Lalit Kariya | 12 Mar, 2020, 03:07: PM
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CBSE 11-science - Maths
Pls solve.
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Asked by pb_ckt | 11 Jun, 2019, 03:34: PM
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CBSE 11-science - Maths
tan x =n tan y n belongs to R+ then maximum value of sec^2(x-y)=(n+1)^2/4n  
Asked by aahnik.mohanty | 29 May, 2019, 08:04: PM
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