CBSE Class 11-science Answered
IF SecA+TanA=p
P.T SinA=p2[Square]-1/p2[Square]+1
Asked by chethan U | 23 Jul, 2012, 06:32: PM
Expert Answer
We know that sec2 A - tan2 A =1 and it is given that
sec A + tan A =p
dividing equation 1 with 2, we get
sec A - tan A = 1/p
Also sec A + tan A = p
sec A + tan A =p
dividing equation 1 with 2, we get
sec A - tan A = 1/p
Also sec A + tan A = p
Adding and subtracting these equations, we get
sec A = (p + 1/p )/2
& tan A = (p-1/p)/2
sec A = (p + 1/p )/2
& tan A = (p-1/p)/2
Thus, sin A = (sin A/ cos A) / (1/cos A) = tan A / sec A =(p2 - 1) / (p2+ 1)
Answered by | 23 Jul, 2012, 10:42: PM
Concept Videos
-
Fundamental trigonometric identities and problems based on them. Sign Conve... -
This video explains the concept of negative & positive angles, conversion o... -
Define the domain, period and range of the trigonometric functions and plot... -
Derive and apply the basic formulae of sine and cosine functions like sin(... -
This video covers values of trigonometric ratios of angles greater than 90 ...
CBSE 11-science - Maths
Asked by soumyadas098h | 02 Nov, 2022, 08:01: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by mishraparveen1234 | 15 Jun, 2022, 04:56: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by karthikeyainuguri2009 | 10 Apr, 2022, 03:01: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by sinchanaandavan | 02 Jan, 2022, 12:17: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by vermahiteshi243 | 30 Aug, 2021, 09:53: AM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by nareshpanchal76 | 07 Oct, 2020, 10:13: AM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by shanujam03 | 03 Oct, 2020, 08:59: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by bandlapravalika4 | 25 Sep, 2020, 01:32: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by apnp31 | 21 Sep, 2020, 12:19: PM
ANSWERED BY EXPERT