مثال ١: =3/5، /2<< — ؟

-5/4 الربع الثاني: =-4/5 ⇒ =-5/4.

From the Tawjihi question bank — Mathematics · المتطابقات والمعادلات المثلثية

المتطابقات المثلثية 1 question — Mathematics Tawjihi, with answer

مثال ١: $\sin\theta=3/5$ ، $\pi/2<\theta<\pi$ — $\sec\theta$ ؟

المتطابقات المثلثية 1Level: Medium

Choices

5/4

-4/5

4/5

-5/4

The answer

-5/4

Explanation

الربع الثاني:

\cos\theta=-4/5

⇒

\sec\theta=-5/4

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المتطابقات المثلثية 1 question — Mathematics Tawjihi, with answer

مثال ١: sin⁡θ=3/5\sin\theta=3/5sinθ=3/5، π/2<θ<π\pi/2<\theta<\piπ/2<θ<π — sec⁡θ\sec\thetasecθ؟

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مثال ١: $\sin\theta=3/5$ ، $\pi/2<\theta<\pi$ — $\sec\theta$ ؟