7, 2cos6 = x+1 হলে নীচের কোটি cos24 র মান ? ® x2+1
(2 -
T
B
+
x2
x2
| 3
p3
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7, 2cos6 = x+1 হলে নীচের কোটি cos24 র মান ? ® x2+1
(2 -
T
B
+
x2
x2
| 3
p3
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