Trigonometric Ratios and Identities

Section: Mathematics
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Question : 2 of 64
 
Marks: +1, -0
If cot‌x=‌
5
12
for some x∈(π,‌
3Ï€
2
)
, then sin‌7x(cos‌
13x
2
+sin‌‌
13x
2
)
+cos‌7‌x(cos‌
13x
2
−sin‌‌
13x
2
)
is equal to
[24 jan 2026 Shift 1]
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