Practice Relations Between Ratios - 7.4 | 7. Trigonometry | ICSE Class 9 Maths
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7.4 - Relations Between Ratios

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define tangent and express it in terms of sine and cosine.

💡 Hint: Think about the definition of tangent related to the sides of a triangle.

Question 2

Easy

What is the value of \( \tan 45^\circ \)?

💡 Hint: Recall that sine and cosine for 45 degrees are equal.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the relationship between tangent and sine?

  • A. \\( \\tan \\theta = \\frac{\\cos \\theta}{\\sin \\theta} \\)
  • B. \\( \\tan \\theta = \\frac{\\sin \\theta}{\\cos \\theta} \\)
  • C. \\( \\tan \\theta = \\sin \\theta + \\cos \\theta \\)

💡 Hint: Think about the definition of tangent in terms of sine and cosine.

Question 2

Is \( \cot \theta = \frac{\sin \theta}{\cos \theta} \)?

  • True
  • False

💡 Hint: Recall the definitions of tangent and cotangent.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Find \( \tan 60^\circ \) given \( \sin 60 = \frac{\sqrt{3}}{2} \) and \( \cos 60 = \frac{1}{2} \).

💡 Hint: Substitute the known sine and cosine values for the angle.

Question 2

If \( \sqrt{\frac{5}{13}} + \sqrt{\frac{8}{13}} = 1 \), how do you relate them to the Pythagorean identity?

💡 Hint: Use the definitions and square both sides.

Challenge and get performance evaluation