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NTPC Graduate Tier 1 2025 Shift-1 📅 06 May, 2025

What is the exact numerical value of (sin 30° + cos 60°) ?

A
1
B
0
C
1.5
D
2
Result Summary
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APEDIA

NTPC Graduate Tier 1
2025 • 06 May, 2025 • Shift-1
What is the exact numerical value of (sin 30° + cos 60°) ?
Correct Answer
1
Standard Trigonometric Ratios: In standard trigonometry, the sine of a 30-degree angle is a fixed constant, specifically 1/2. Similarly, the cosine of a 60-degr......
Ref/Book : NTPC Graduate Tier 1 2025
Ref. Subject Mathematics
Chapter -
Ref. Topic Trigonometry
Pg. No -
💡 Analysis & Explanation
Standard Trigonometric Ratios ▼
In standard trigonometry, the sine of a 30-degree angle is a fixed constant, specifically 1/2. Similarly, the cosine of a 60-degree angle is also defined universally as 1/2.
Mathematical Addition ▼
The problem requires the summation of these two distinct trigonometric entities.
Final Computation ▼
Adding the fractional values together (1/2 + 1/2) yields exactly 1.
Conclusion ▼
The mathematical evaluation of the given expression strictly equals 1.
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