Request a call back

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

ICSE Class 10 Answered

sec²a.cosec²a = tan²a + cot²a+ 2
Asked by rakshitsujata1 | 07 Apr, 2021, 08:44: AM
answered-by-expert Expert Answer
To prove: sec²a.cosec²a = tan²a + cot²a+ 2
Consider the RHS
= tan²a + cot²a+ 2
= (sin2a/cos2a) + (cos2a/sin2a) + 2
= (sin4a+cos4a+2cos2a sin2a)/(cos2a sin2a)
= (sin2a+cos2a)2/(cos2a sin2a)
= 1/(cos2a sin2a)
= sec2a cosec2a
Answered by Renu Varma | 09 Apr, 2021, 10:44: AM
ICSE 10 - Maths
Asked by geeta.tnsingh | 05 Nov, 2023, 06:25: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
Asked by abhidlw4321 | 03 Oct, 2022, 09:34: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
Asked by rashikulkarni28 | 10 Jun, 2022, 10:23: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
Asked by rashikulkarni28 | 08 Jun, 2022, 03:14: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
Asked by rashikulkarni28 | 01 Jun, 2022, 07:08: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
Asked by panditpriyanka323 | 12 Feb, 2022, 02:44: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
Asked by anshujaiswal221502 | 08 Feb, 2022, 09:12: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
Asked by priyankakumarisoni1608 | 08 Aug, 2021, 03:29: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
Asked by rakshitsujata1 | 07 Apr, 2021, 08:44: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
Asked by kotharianaiya9 | 06 Mar, 2021, 12:15: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×