# Interactive video lesson plan for: ICSE Class 10 Maths Trigonometric Identities solved problems | Trigonometric Functions

#### Activity overview:

ICSE Class 10 Maths Trigonometric Identities solved problems | Trigonometric Functions

http://www.learncbse.in/frank-icse-class-10-physics-solutions/
http://www.learncbse.in/ncert-class-10-math-solutions/
http://www.learncbse.in/rd-sharma-class-10-solutions-chapter-5-trigonometric-ratios/

00:02 ICSE Class 10 Maths Trigonometric Identities
Workedout Examples Q5. Prove the trigonometric equations using trigonometric identities, where the angles involved are acute angles for which the expressions are defined
00:04 q5 (7)
00:19 Procedure for proving Trigonometric equations using trigonometric identities
00:27 Take LHS of the trigonometric equation
01:14 Quotient Identity
tan A = sin A/cos A.
01:22 Use Pythagorian Identity
sin squared theta plus cos squared theta = 1
01:49 solving trigonometric expressions
02:28 LHS is RHS of the trigonometric equation.Trigonometric equation is proved.

02:47 ICSE Class 10 Maths Trigonometric Identities
Workedout Examples q5 9
03:11 Leran Procedure for proving Trigonometric equations using trigonometric identities
03:18 consider LHS of the trigonometric equation
03:30 Reciprocal Identity.
The ratios cosec A, sec A and cot A are respectively, the reciprocals of the ratios sin A, cos A and tan A.cosec A = 1 / cos A
04:06 Use Pythagorian Identity
sin squared theta plus cos squared theta = 1
04:58 RHS of the trigonometric equation
05:09 Quotient Identity
tan A = sin A/cos A. tan A=cos A/sin A
05:47 LHS is RHS of the trigonometric equation.Trigonometric equation is proved.

06:04 ICSE Class 10 Maths Trigonometric Identities
Workedout Examples q5 (i)
06:24 PROCIDURE FOR SOLVING Trigonometric equations
06:30 consider LHS of the trigonometric equations
06:44 Reciprocal Identity.
The ratios cosec A, sec A and cot A are respectively, the reciprocals of the ratios sin A, cos A and tan A
Quotient Identity
cot A = cos A / sin A.
07:26 Use Pythagorian Identity
sin squared theta plus cos squared theta = 1
08:54 trigonometric equation is proved

09:05 ICSE Class 10 Maths Trigonometric Identities
Workedout Examples q5 (2)
09:21 Procedure for proving Trigonometric equations
09:30 consider LHS of the trigonometric equation
10:12 algebra maths formulas | Algebraic Expressions and Formulas
USE (a-b)^2 expanding formula
11:07 Use Pythagorian Identity
sin squared theta plus cos squared theta = 1
12:06 Reciprocal Identity.
The ratios cosec A, sec A and cot A are respectively, the reciprocals of the ratios sin A, cos A and tan A
sec A = 1/cos A
12:28 How to prove Trigonometric identities.

Using the fundemental identities and the Pythagorean Identities
multiple examples of verifying trigonometric identities
How to Solve Trigonometric Identities Proving Problems
method to solve trigonometric identities problems
the Quotient Identities, Reciprocal Identities, and the Pythagorian Identities.

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