railway RRB Group D Mock Test Series 2024-25 Quantitative Aptitude Trigonometry Circular Measure of Angles

ଯଦି A + B = 36° ଏବଂ A – B = 15°,  sin2(A2 – B2)ର ମୂଲ୍ୟ ଖୋଜନ୍ତୁ।

1
-1/√2
2
-1
3
0
4
1
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