CBSE Class 11-science Answered
.
Asked by Krishna62 | 07 Sep, 2019, 06:50: PM
Expert Answer
sin (45° + A) + sin (45° - A)
= sin 45° cos A + cos 45° sin A + sin 45° cos A - cos 45° sin A
= 2sin 45° cos A
= 2 × 1/√2 cos A
= √2 cos A
Hence,
sin (45° + A) + sin (45° - A) = √2 cos A
Answered by Sneha shidid | 09 Sep, 2019, 09:56: AM
Concept Videos
-
Deriving addition, subtraction formulae of trigonometri ...
Derive the formula of sin A +/- sin B, cos A +/- cos B and 2sinxcosy, 2sinx... -
Sum and Difference function ...
This video explains the derivation of the formula of sin A + sin B, cos A +... -
Sum and Difference Function
This video explains the derivation the formula of sin A +/- sin B, cos A +/...
CBSE 11-science - Maths
Asked by 069.pks | 16 Sep, 2023, 10:06: AM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by sinchanaandavan | 02 Jan, 2022, 12:17: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by Madhavipamarthi1977 | 16 Sep, 2020, 08:18: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by ManjuShaharraiya | 15 Sep, 2020, 09:57: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by sachitshanchinal | 02 Sep, 2020, 02:53: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by vikassuradkar2015 | 08 Dec, 2019, 11:11: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by ABHILASHA | 07 Sep, 2019, 03:14: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by hunte2931 | 17 Jun, 2019, 04:49: PM
ANSWERED BY EXPERT
