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If A and B are acute angles such that sin (A – B) = 0 and 2cos(A + B) – 1 = 0, thenA =
Given: 1. sin(A - B) = 0 ⇒ A - B = 0° ⇒ A = B. 2. 2cos(A + B) - 1 = 0 ⇒ cos(A + B) = 1/2 ⇒ A + B = 60°. Substitute A = B into A + B = 60°: 2A = 60° ⇒ A = 30°. This question related to Chapter 8 Mathematics Class 10th NCERT. From the Chapter 8 Introduction to Trigonometry. Give answer according to yoRead more
Given:
1. sin(A – B) = 0 ⇒ A – B = 0° ⇒ A = B.
2. 2cos(A + B) – 1 = 0 ⇒ cos(A + B) = 1/2 ⇒ A + B = 60°.
Substitute A = B into A + B = 60°:
2A = 60° ⇒ A = 30°.
This question related to Chapter 8 Mathematics Class 10th NCERT. From the Chapter 8 Introduction to Trigonometry. Give answer according to your understanding.
For more please visit here:
See lesshttps://www.tiwariacademy.in/ncert-solutions/class-10/maths/
If triangle ABC is right angled at C, then the value of cos (A + B) is
In a right-angled triangle ABC, with C as the right angle: A + B = 90° (since A + B + C = 180° and C = 90°). Thus, cos(A + B) = cos(90°) = 0. This question related to Chapter 8 Mathematics Class 10th NCERT. From the Chapter 8 Introduction to Trigonometry. Give answer according to your understanding.Read more
In a right-angled triangle ABC, with C as the right angle:
A + B = 90° (since A + B + C = 180° and C = 90°).
Thus, cos(A + B) = cos(90°) = 0.
This question related to Chapter 8 Mathematics Class 10th NCERT. From the Chapter 8 Introduction to Trigonometry. Give answer according to your understanding.
For more please visit here:
See lesshttps://www.tiwariacademy.in/ncert-solutions/class-10/maths/
9 sec² A – 9 tan² A is equal to
We know the trigonometric identity: sec²A - tan²A = 1. Thus: 9(sec²A - tan²A) = 9(1) = 9. This question is associated with Chapter 8, "Introduction to Trigonometry," from the Class 10th NCERT Mathematics textbook. Provide your answer in accordance with the concepts and understanding gained from thisRead more
We know the trigonometric identity:
sec²A – tan²A = 1.
Thus:
9(sec²A – tan²A) = 9(1) = 9.
This question is associated with Chapter 8, “Introduction to Trigonometry,” from the Class 10th NCERT Mathematics textbook. Provide your answer in accordance with the concepts and understanding gained from this chapter.
For more please visit here:
See lesshttps://www.tiwariacademy.in/ncert-solutions/class-10/maths/
If net electric flux through a closed surface is zero, we can infer
The correct answer is (a) no net charge is enclosed by the surface. According to Gauss's law, the net electric flux through a closed surface is given by Φ = Qenc/ϵ0 . If the flux is zero, the net charge enclosed (Qenc) must also be zero, meaning either no charge is inside or equal positive and negaRead more
The correct answer is (a) no net charge is enclosed by the surface.
According to Gauss’s law, the net electric flux through a closed surface is given by
Φ = Qenc/ϵ0
. If the flux is zero, the net charge enclosed (Qenc) must also be zero, meaning either no charge is inside or equal positive and negative charges cancel out.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-2/
Why is it necessary to measure ingredients correctly while preparing food?
Measuring ingredients accurately is essential to achieve the desired taste, texture and consistency in food. Proper measurement ensures that flavors are balanced and ingredients are used efficiently, preventing excess or deficiency in a recipe. It also helps in maintaining nutritional value, avoidinRead more
Measuring ingredients accurately is essential to achieve the desired taste, texture and consistency in food. Proper measurement ensures that flavors are balanced and ingredients are used efficiently, preventing excess or deficiency in a recipe. It also helps in maintaining nutritional value, avoiding food wastage and ensuring portion control. Whether using standard measuring cups, teaspoons or weighing scales, precision in ingredient measurement improves the quality and appeal of fireless dishes.
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