CBSE Class 10 Maths | Introduction to Trigonometry | Full Chapter | Chapter 8 | Exam Winner

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"🔬 Welcome to Exam Winner Class 10 - Your Premier Source for Class 10 Maths Insights! 🔬

Prepare to dive into the world of ""Introduction to Trigonometry"" in our CBSE Class 10 Maths tutorial. In this educational journey, we'll unravel the basics of trigonometry, making complex math concepts accessible and understandable.

📚 This chapter is a crucial component of your CBSE Class 10 Maths curriculum, and we're here to ensure you master it with confidence!

Our dedicated instructors at Exam Winner Class 10 are committed to guiding you through the fundamentals of trigonometry. Join us as we simplify the concepts, equations, and applications of this essential math topic.

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[learning]

Answer isA+B+90=180
A+B=90
COS 90=0
good class and amazing class❤❤❤❤❤❤❤

[muhammedadnan]

<A+<B+<C=180°
Since triangle ABC is right angled at C,
<C=90°
<A+<B+90=180
<A+<B=180-90
=90
Cos(A+B)=90
Cos90=0
Therefore the value of cos(A+B)=0

❤❤Your classes are so interesting that we are able to catch up easily❤❤

[Abhishek-dzdm]

0 is the answer option (b)
Subina miss is the guide of my life.very interesting class
Thank you so

[athiraanil]

In triangle ABC, angle(a+b+c)=180 (asp)
C=90
A+B+90=180
A+B+180-90
i.e. A+B=90
cos(A+B)=90
cos 90=0
i.e. cos(A+B)=0
Therefore option b is the answer

Innathe cls nice aayrunn💙❤

[amrithaamarnath]

Answer is 0
Your class was awesomely well built up one 🎉

[Faaadhiiii]

In triangle abc
A=45, b=45, c=90 (180)
Cos (A+B) = cos 45+45
=cos 90 =0

Thank you mam 💗...
You made this easy to understand 😊..

[Aman-djqg]

0 is the answer


Your teaching is amazing ma'am 😊🤟👏👏💖i liked your class. Waiting for the next trigonometry classes...😊

[acdrawing]

A+B+C =180
A+B+90=180
THEREFORE
A+B=90
COS 90 =0
ANS =0

[kooraliankoorali]

∠A + ∠B + ∠C = 180°

∠A + ∠B + 90° = 180°

∠A + ∠B = 180° - 90°

∠A + ∠B = 90°

So, cos (A+B) = cos 90°

Using the trigonometric ratios of angles,

cos 90° = 0

Therefore, the value of cos(A + B) is 0

[reshmaunmeshreshmaunmesh]

Answer is 0 Subina miss superclass trigonometry is a king of Subina miss thank you for free giving class exam winner teachers are very powerful first powerful teacher is subina miss thank you for exam winner all of teachers family❤❤❤❤❤❤❤❤❤❤❤

[georgeraju]

In triangle ABC
given-angleC=90 degree
therefore, by using angle sum property of a triangle
angleA+angleB+angleC=180 degree
therefore, angleA+angleB=180-angleC
angleA+angleB=180-90 degree
angleA+angleB=90 degree
therefore, (A+B)=90 degree
, cos(90)=0

[namithaladheesh]

∠A + ∠B + ∠C = 180°

∠A + ∠B + 90° = 180°

∠A + ∠B = 180° - 90°

∠A + ∠B = 90°

So, cos (A+B) = cos 90°

Cos 90°=0 zero

Therefore answer is b) 0

[divyasnair]

Ans b) 0
<A+<B+<C=180
<A+<B+90=180
<A+<B=180-90
<A+<B=90
Cos(A+B)=cos90°
=0
Class sooooper ayirunu misse thankyou🥰🥰🥰🥰❤️❤️

[Rayhan-]

∠ A + ∠ B + ∠ C = 180 o [ Angle sum property ] ⇒ ∠ A + ∠ B + 90 o = 180 o ⇒ ∠ A + ∠ B = 180 o − 90 o ∴ ∠ A + ∠ B = 90 o Now, cos ( A + B ) = cos 90 o We know that, cos 90 o = 0 ∴ cos ( A + B ) = 0
class poli aarunnnn
pinne maam inte karyam settt powerrrr
exam winner

[suttuzgaming]

Ans. 0
C=90 Then A+B+C=180(angle sum property)
A+B+90=180
A+B=90
Cos(A+B)=Cos 90
So, Cos 90 =0

[shahzzaaa]

Q) If △AB C is a right-angled triangle, right-angled at C, then cos ( A + B) =

Answer is 0

Steps:
∠A + ∠B + ∠C = 180°
∠A + ∠B + 90° = 180°
∠A + ∠B = 180° - 90°
∠A + ∠B = 90°
So, cos (A+B) = cos 90°

Using the trigonometric ratios of angles,
cos 90° = 0
Therefore, the value of cos(A + B) is zero.



Missinte class adipoli. All concepts manassilayi🔥🔥🔥

[ardras]

Circles kaznj coordinate geometry edkamo? Monday model nd athin munb

[NiranjanaAmmu-odzh]

According to angle sum property,
Angle A +Angle B+Angle C=180
Angle A +Angle B+90=180
Angle A +Angle B=90
Cos 90=0
Therefore the answer is 0

Miss your class was just

[sarajohn]

<A+<B+<C=180°
Since triangle ABC is right angled at C,
<C=90°
<A+<B+90=180
<A+<B=180-90
=90
Cos(A+B)=90
Cos90=0
Therefore the value of cos(A+B)=0

❤❤Your classes are so interesting that we are able to catch up easily❤❤

[kunjuskrishnapriya]

Missintae clss pwoliyann ellam nanyittu manasillayi exam winner teachers power ann mwth annn💗💗💗💗