railway RRB Group D Mock Test Series 2024-25 Quantitative Aptitude Trigonometry

ନିମ୍ନଲିଖିତ ଅଭିବ୍ୟକ୍ତିର ମୂଲ୍ୟ କ’ଣ?

(tan 2°tan 88°) (tan 3°tan 87°)... (tan 43° tan 47°) tan 45°

1
–1
2
1
3
0
4
∞
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