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PUST-A_17-18
HSC - উচ্চতর গণিত ১ম পত্র
→
অধ্যায়-০৬ঃ ত্রিকোণমিতিক অনুপাত
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cosec
θ
+
cot
θ
=
5
6
\operatorname{cosec} \theta+\cot \theta=\frac{5}{6}
cosec
θ
+
cot
θ
=
6
5
হলে,
cosec
θ
−
cot
θ
\operatorname{cosec} \theta-\cot \theta
cosec
θ
−
cot
θ
এর মান-
A.
1
6
\frac{1}{6}
6
1
B.
5
6
\frac{5}{6}
6
5
C.
1
D.
6
5
\frac{6}{5}
5
6
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