Request a call back

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

ICSE Class 10 Answered

prove that 3(sinA-cosA)^⁴+6(sinA+cosA)^²+(sin^⁶A+cos^⁶A)=14
Asked by gaddamyashwanthr | 21 Sep, 2020, 09:00: PM
Expert Answer
To prove: 3(sinA-cosA)4 + 6(sinA+cosA)2 + 4(sin6A+cos6A) = 13
 
3 open parentheses sin squared straight A plus cos squared straight A minus 2 sinAcosA close parentheses squared plus 6 open parentheses sin squared straight A plus cos squared straight A plus 2 sinAcosA close parentheses plus open parentheses sin squared straight A plus cos squared straight A close parentheses open parentheses sin to the power of 4 straight A plus cos to the power of 4 straight A minus sin squared Acos squared straight A close parentheses
equals 3 open parentheses 1 minus 2 sinAcosA close parentheses squared plus 6 open parentheses 1 plus 2 sinAcosA close parentheses plus 4 open parentheses open parentheses sin squared straight A plus cos squared straight A close parentheses squared minus 2 sin squared Acos squared straight A minus sin squared Acos squared straight A close parentheses
equals 3 open parentheses 1 minus 2 sinAcosA close parentheses squared plus 6 open parentheses 1 plus 2 sinAcosA close parentheses plus 4 open parentheses 1 minus 3 sin squared Acos squared straight A close parentheses
equals 3 open parentheses 1 plus 4 sin squared Acos squared straight A minus 4 sinAcosA close parentheses plus 6 plus 12 sinAcosA plus 4 minus 12 sin squared Acos squared straight A
equals 3 plus 12 sin squared Acos squared straight A minus 12 sinAcosA plus 6 plus 12 sinAcosA plus 4 minus 12 sin squared Acos squared straight A
equals 13
Answered by Renu Varma | 22 Sep, 2020, 12:06: PM
ICSE 10 - Maths
Asked by abhidlw4321 | 03 Oct, 2022, 09:34: PM
ANSWERED BY EXPERT
ICSE 10 - Maths
Asked by rashikulkarni28 | 10 Jun, 2022, 10:23: AM
ANSWERED BY EXPERT
ICSE 10 - Maths
Asked by rashikulkarni28 | 08 Jun, 2022, 03:14: PM
ANSWERED BY EXPERT
ICSE 10 - Maths
Asked by rashikulkarni28 | 01 Jun, 2022, 07:08: PM
ANSWERED BY EXPERT
ICSE 10 - Maths
Asked by panditpriyanka323 | 12 Feb, 2022, 02:44: PM
ANSWERED BY EXPERT
ICSE 10 - Maths
Asked by anshujaiswal221502 | 08 Feb, 2022, 09:12: PM
ANSWERED BY EXPERT
ICSE 10 - Maths
Asked by priyankakumarisoni1608 | 08 Aug, 2021, 03:29: PM
ANSWERED BY EXPERT
ICSE 10 - Maths
Asked by rakshitsujata1 | 07 Apr, 2021, 08:44: AM
ANSWERED BY EXPERT
ICSE 10 - Maths
Asked by kotharianaiya9 | 06 Mar, 2021, 12:15: PM
ANSWERED BY EXPERT
ICSE 10 - Maths
Asked by afaizaali293 | 25 Oct, 2020, 11:39: AM
ANSWERED BY EXPERT
Get FREE Sample Mock Papers for Final Exams
Download Now
×