CBSE Class 11-science Answered
Please someone solve
No. 15.iii)
Asked by jiujam | 06 Jul, 2019, 03:34: PM
Expert Answer
sin2 x + sin2 (x - y) - 2sinxcosysin(x - y)
= sin2x + sin (x - y)[sin(x - y) - 2sinx cosy]
= sin2 x + sin(x - y)[sinx cosy - cosx siny - 2sinx cosy]
= sin2 x + sin(x - y)[-(sin x cos y + cos x sin y)]
= sin2 x - sin(x - y)(sin x cos y + cos x sin y)
= sin2 x - sin(x - y)sin (x + y)
= sin2 x - (sin2 x + sin2 y)
= sin2y
Answered by Renu Varma | 08 Jul, 2019, 10:21: AM
Concept Videos
-
Derivation of expressions for trigonometric function ...
Derive expressions for trigonometric functions of tan(x+y) , cot(x+y) ,sin ... -
Advanced Trigonometric Formulae
This video covers the derivation of expressions for trigonometric functions... -
Advanced trigonometric formulae
This video explains the derivation of expressions for trigonometric functio...
CBSE 11-science - Maths
Asked by jiujam | 06 Jul, 2019, 03:34: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by aahnik.mohanty | 22 May, 2019, 10:09: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by aahnik.mohanty | 22 May, 2019, 09:59: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by Iamanish2003 | 20 May, 2019, 02:12: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by Soma | 04 Mar, 2019, 11:18: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by dineshchem108 | 03 Sep, 2018, 09:03: AM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by tps.mjmdr | 16 Jun, 2018, 05:45: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by tps.mjmdr | 16 Jun, 2018, 05:40: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
find the value of 
Asked by Topperlearning User | 31 Aug, 2016, 06:47: PM
ANSWERED BY EXPERT
