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Interactive video lesson plan for: Solve Trig Problems on Trigonometric Ratios , Complementary Angles & Trigonometric Identities

Activity overview:

Solve Trigonometry Problems on Trigonometric Ratios , Complementary Angles & Trigonometric Identities

http://www.learncbse.in/ncert-class-10-math-solutions/
http://www.learncbse.in/ncert-solutions-for-class-10-maths-chapter-8-introduction-to-trigonometry/
http://www.learncbse.in/rd-sharma-class-10-solutions-chapter-5-trigonometric-ratios/

This tutorial shows how to solve trigonometric equation involving Complementary angles. Concepts that are reviewed during this tutorial include:
Combining like terms.
solving equation involving raducals.
Complementary angles
In this video we solve a trigonometric expression by using trigonometric ratios of complementary angles. This is really simple and detail tutirial covers the entire topic complementary angles - trigonometric ratios. In such problems we have to make same numerator & denominator by using the trigonometric ratios of complementary angles relationship.From Complementary Angle Theorem
Complementary Angles with Trig Ratios
Trigonometric Ratios of Complementary Angle- Find the Angle Problems

00:03 Solve Trigonometry Problem q3. Evaluate :
00:31 (i)
01:03 COMPLEMENTARY ANGLES DEFINATION
Two angles are said to be complementary if their sum equals 90° pair of complementary angles A and (90° – A).
make same numerator & denominator by using the trigonometric ratios of complementary angles relationship.
sin (90°– A) = cos A, cos (90°– A) = sin A
02:57 Use Pythagorian Identity
sin squared theta plus cos squared theta = 1
03:37 (ii)
04:18 COMPLEMENTARY ANGLES
complementary angles are defined pair of two angles whose as sum equals 90°.
make same trigonometric ratios using trigonometric ratios of complementary angles relationship.
sin (90°– A) = cos A, cos (90°– A) = sin A
06:06 Solve Trigonometry Problem q4. Choose the correct option. Justify your choice.
06 :23 (i)
06:29 Use Pythagorian Identity
secant squared theta minus tan squared theta = 1
06:51 (ii)
substitute the given angles
07:40 simplifying radicals
08:15 (iii)
08:30 reciprocal identity
09:16 Use Pythagorian Identity
sin squared theta plus cos squared theta = 1
09:51 (iv)
10:08 reciprocal identity


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CBSE solutions for class 10 maths Chapter 8 Trigonometry Exercise 8.3
CBSE class 10 maths NCERT Solutions Chapter 8 Trigonometry Exercise 8.4 | Trigonometric Identities

Tagged under: ncert solutions,learncbse.,gyanpub,Trigonometric Identities,Trigonometry,CBSE class 10 maths,Complementary Angles,Solve Trig Problems,Trigonometric Ratios,Find Angle Problems,Complementary Angles Trig Ratios,math trigonometry,learn trigonometry online free,trigonometry algebra,trigonometric ratios lesson,learning trigonometry,solve trigonometry

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