common-core-math-trigonometry-functions-solving-trigonometric-ratios-of-complementary-angles

Common core math Trigonometry Functions | Solving trigonometric ratios of complementary angles

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/

00:02 CBSE class 10 maths NCERT SolutionsChapter 8 Trigonometry Exercise 8.3 Q1. Solving Problems using trigonometric ratios of complementary angles

00:18 (i) sin 18° / cos 72° || 01:42 (ii) tan 26° / cot 64° || 03:07 (iii) cos 48° – sin 42° || 04:25 (iv) cosec 31° – sec 59°

00:36 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

05:42 2. Show that :

06:11 Prove the trigonometric equation (i) tan 48° tan 23° tan 42° tan 67° = 1

06:28 consider LHS of trigonometric equation.

07:28 complementary angles are defined pair of two angles whose as sum equals 90°.

08:05 Important property

If A and B are complementary angles then Tan A * Tan B = 1.

09:51 (ii) cos 38° cos 52° – sin 38° sin 52° = 0

10:51 Trigonometric Ratios of Complementary Angle - Solving Problems

sin (90° – A) = cos A, cos (90° – A) = sin A ,

Follow us:

On Twitter

https://twitter.com/cbseguesspapers

Linkedin

https://www.linkedin.com/profile/view?id=396397973&trk=nav_responsive_tab_profile

Pinterest

https://in.pinterest.com/LearnCBSE/

Facebook

https://www.facebook.com/cbseguesspapers

Youtube LearnCBSE.in

https://www.youtube.com/user/CBSEPapers

Wordpress

https://cbselabs.wordpress.com/

learncbse.in

CBSE solutions for class 10 maths Chapter 8 Trigonometry Exercise 8.4

CBSE class 10 maths NCERT SolutionsChapter 8 Trigonometry Exercise 8.2 | Trigonometric Identities

CBSE class 10 maths NCERT Solutions Chapter 8 Trigonometry

Solutions for CBSE class 10 Maths Trigonometry

NCERT solutions for class 10 maths Trigonometry

NCERT solutions for CBSE class 10 maths Trigonometry

CBSE class 10 maths Trigonometry

Common core Math Trigonometry

Tagged under: ncert solutions,learncbse.,gyanpub,Trigonometry Functions,CBSE class 10 maths NCERT Solutions,Common core,Solving trigonometric,complementary angles,trigonometric ratios lesson,solve trigonometry,mathematics class 10 cbse,trigonometry mathematics,math trigonometry,trigonometry formulas,solving problems trigonometry ratios,Problems Trigonometric Ratio Standard Angle,Complementary Angles Trig Ratios

Clip makes it super easy to turn any public video into a formative assessment activity in your classroom.

Add multiple choice quizzes, questions and browse hundreds of approved, video lesson ideas for Clip

Make YouTube one of your teaching aids - Works perfectly with lesson micro-teaching plans

1. Students enter a simple code

2. You play the video

3. The students comment

4. You review and reflect

* Whiteboard required for teacher-paced activities

With four apps, each designed around existing classroom activities, Spiral gives you the power to do formative assessment with anything you teach.

Quickfire

Carry out a quickfire formative assessment to see what the whole class is thinking

Discuss

Create interactive presentations to spark creativity in class

Team Up

Student teams can create and share collaborative presentations from linked devices

Clip

Turn any public video into a live chat with questions and quizzes

Tried out the canvas response option on @SpiralEducation & it's so awesome! Add text or drawings AND annotate an image! #R10tech

Using @SpiralEducation in class for math review. Student approved! Thumbs up! Thanks.

Absolutely amazing collaboration from year 10 today. 100% engagement and constant smiles from all #lovetsla #spiral

Students show better Interpersonal Writing skills than Speaking via @SpiralEducation Great #data #langchat folks!

Dr Ayla Göl
@iladylayla

A good tool for supporting active #learning.

The Team Up app is unlike anything I have ever seen. You left NOTHING out! So impressed!