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Introduction to Trigonometry Lessons
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Post a LessonAnswered on 17 Apr Learn CBSE/Class 10/Mathematics/UNIT V: Trigonometry/Introduction to Trigonometry
Sadika
Given:
We need to compute the value of:
Answered on 17 Apr Learn CBSE/Class 10/Mathematics/UNIT V: Trigonometry/Introduction to Trigonometry
Sadika
Given:tan(θ)+cot(θ)=5
We need to find the value of:
Answered on 17 Apr Learn CBSE/Class 10/Mathematics/UNIT V: Trigonometry/Introduction to Trigonometry
Sadika
As the angle increases from 0° to 90°, the value of the cosine function will decrease.
Here's why:
This behavior is evident if you look at the unit circle representation of trigonometric functions. As you move counterclockwise from the initial point (1, 0) on the unit circle (corresponding to 0∘0∘), the x-coordinate (which represents the cosine function) decreases until it reaches 0 at 90∘90∘.
So, as the value of the cosine function increases from 0∘0∘ to 90∘90∘, its actual value decreases from 1 to 0.
Answered on 12/03/2022 Learn CBSE/Class 10/Mathematics/UNIT V: Trigonometry/Introduction to Trigonometry
Shailesh Kaushik
youtube @shaileshkaushik to have a look at my teaching method.
Tan A = 1 means A is 45 degrees.
which means cosA = cos45 = 1/√2 and sinA = sin45 = 1/√2
therefore, 2sinAcosA = 2 * 1/√2 * 1/√2
= 2 * (1/2)
= 1
read lessAnswered on 17 Apr Learn CBSE/Class 10/Mathematics/UNIT V: Trigonometry/Introduction to Trigonometry
Sadika
Given:
We need to prove that
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