" 省 "2.quad sin^(-1)(4)/(5)+2tan^(-1)(1)...

" 省 "2.quad sin^(-1)(4)/(5)+2tan^(-1)(1)/(3)=(pi)/(2)

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" 省 "2.quad sin^(-1)(4)/(5)+2tan^(-1)(1)/(3)=(pi)/(2)
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2 Tan^(-1)(1/2) + Sin^(-1)(3/5)=
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सिद्ध कीजिए - sin^(-1).(4)/(5)+2tan^(-1).(1)/(3)=(pi)/(2).
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প্রমাণ করো:2tan^-1""1/3+sin^-1""4/5=pi/2
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