(i) x sin45° cos45° tan60° = tan245° – cos60° হলে, x-এর
tan245° sec60°
(ii) x sin 60° cos2 30° =
হলে, x-এর মান নি
cosec60°
(iii) x2 = sin230° + 4cot-45° – sec260° হলে, x-এর মান নির্ণ
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yes bro say.....
do you know bengali also??
and Ur intro plz
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