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If θ = 5/2 then (4θ +… (Class 10 Maths SQP 2024-25, Q6)

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MathsCBSE Class 10 · Standard · Sample paper, session 2024-25 · 1 mark · MCQ

CBSE Class 10 Mathematics Standard sample paper 2024-25: question 6

From the official CBSE sample question paper for 2024-25, section A, question 6, for 1 mark. Try it first; the hints and our step-by-step solution are below.

Q6 · 1 mark · MCQIntroduction to Trigonometry

If then is equal to

  1. (A)
  2. (B)
  3. (C)
  4. (D)

Source: official sample paper from cbseacademic.nic.in (PDF). See it in the full Sample paper 2024-25.

Hints

Open one hint at a time and try again before the next.

Hint 1

Try dividing the top and the bottom by .

Hint 2

Then substitute .

Step-by-step solution

Each step shows the marks it earns, as an examiner would award them. Checked by an independent re-solve from the question paper.

  1. Divide the numerator and the denominator by : .

  2. . The answer is option (A).

    1 mark

Answer: , option (A)

Where the marks are

  • Converts the expression to and evaluates it as (1 mark)

Revise the chapter

Practise this chapterBoard-style questions from Introduction to Trigonometry, one at a time, marked against the answer key and marking points.Back to the full paperSample paper 2024-25 (Standard): every question, by section.

The question is transcribed from the official paper; figures are described in words. The solution, hints and chapter tag are ours. Spotted an error? Write tosupport@questionbuddy.in.