Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
0 reads0 ratings0 helpful

What is the value of \(\sin \dfrac{\pi}{2}\)?

Answer and explanation

Correct answer: \(1\)

The governing concept is the standard sine value at a right angle. The angle \(\pi/2\) radians is equal to \(90^\circ\). On the unit circle, the point reached at this angle is \((0,1)\), and sine is the point’s y-coordinate. Consequently, \(\sin(\pi/2)=1\), so option B is correct. The same result follows from a right triangle: at the limiting right-angle position, the opposite-to-hypotenuse ratio is 1. Option A is \(\sin 0\) and \(\sin\pi\), option C is \(\sin(3\pi/2)\), and option D is associated with angles such as \(\pi/6\), not \(\pi/2\).

Related tags

Standard-ValuesSineUnit-CircleTrigonometric Functions And Their PropertiesTrigonometric FunctionsMathematicsClass 12 Mcq

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.