Which of the following is true for all values of \theta (0^{\circ} \leq \theta \leq 90^{\circ}) ?

Correct Answer is : sec2θ−tan2θ=1

\cos ^2 \theta- \sin ^2 \theta=1

{\cosec}^2 \theta- \sec ^2 \theta=1

\sec ^2 \theta-\tan ^2 \theta=1

\cot ^2 \theta-\tan ^2 \theta=1

CBSE Class 10 Math 2023 Delhi Set-2 Solved Paper - Question 1

SECTION - A

Section - A consists of Multiple Choice type questions of 1 mark each.

Question : 1 of 11

Marks: +1, -0

Which of the following is true for all values of

θ (0^{∘} ≤ θ ≤ 90^{∘})

Solution:

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