CBSE Class 11-science Answered
If sin ^2A=x then express the values of sin A . sin 2A . sin 3A . sin 4A in terms of x.
Asked by tps.mjmdr | 16 Jun, 2018, 08:11: PM
Expert Answer
sinA sin2A sin3A sin4A where sin2 A = x
using sin2A = 2sinAcosA, sin3A = 3sinA - 4sin3 A, sin4A = 2sin2Acos2A = 4 sinAcosA(1 - 2sin2 A)
sin A . sin 2A . sin 3A . sin 4A = sinA 2sinAcosA (3sinA - 4sin3 A) 4 sinAcosA(1 - 2sin2 A)
= 8sin3A cos2A(3sinA - 4sin3 A)(1 - 2sin2 A)
= 8sin3A (1 - sin2A)(3sinA - 4sin3 A)(1 - 2sin2 A)
= 8sin4A(1 - sin2A)(3 - 4sin2 A)(1 - 2sin2 A)
= 8x2 (1 - x)(3 - 4x)(1 - 2x)
Answered by Sneha shidid | 18 Jun, 2018, 12:55: PM
Concept Videos
-
Revising trigonometric formulae
Review of trigonometric formulae and solve problems. Derive the expressions... -
Revising trigonometric formulae and solve problems ...
Review of trigonometric formulae and solve problems. Derive the expressions... -
Review of trigonometric formulae and solve problems ...
Review of trigonometric formulae and solve problems. Derive the expressions...
CBSE 11-science - Maths
Asked by apnp31 | 21 Sep, 2020, 12:19: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by Pallapothu.a | 05 Aug, 2020, 04:13: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by kandukuriPraneeth16 | 25 Jul, 2020, 06:18: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by jaiswalpiyush040 | 20 Jul, 2020, 08:22: AM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by anushkapanwar74 | 15 Aug, 2019, 01:26: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by agarwalharsh8476 | 06 Aug, 2019, 08:32: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by aahnik.mohanty | 29 May, 2019, 08:00: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by acv27joy | 10 Dec, 2018, 01:10: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by acv27joy | 08 Oct, 2018, 09:42: AM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by abhaysharma2710 | 15 Jul, 2018, 10:09: AM
ANSWERED BY EXPERT
