(cos70^@)/(sin20^@)+(cos 59^@)/(sin31^@)...

`(cos70^@)/(sin20^@)+(cos 59^@)/(sin31^@)-8 sin^2 30^@ = 0`

(cos70^@)/(sin20^@)+(cos 59^@)/(sin31^@)-8 sin^2 30^@ = 0
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(cos 70^@)/(sin 20^@) + (cos 59^@)/(sin 31^@) = 8 sin^2 30^@
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Prove that ((cos70^(@))/(sin20^(@)))+((cos59^(@))/(sin31^(@)))-8cos^(2...
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(cos 70^@)/(sin 20^@)+(cos 55^@ cosec 35^@)/(tan 5^@ tan 25^@ tan 45^@...
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(sin20^(@))/(cos70^(@)) का मान होगा :
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(cos 70^(@))/(sin 20^(@)) + (cos 59^(@))/(sin 31^(@) ) - 8 sin^(2) 30^...
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सिद्ध करो : (cos 70^(@))/(sin 20^(@))+ ( cos 59^(@))/( sin 31^(@))-8...
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रिक्त स्थानों की पूर्ति करें - यदि cos70^(@)=0.3420 तो sin20^(@)=...
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सिद्ध कीजिए कि (cos70^(@))/(sin20^(@))+(cos59^(@))/(sin31^(@))-8cos^(2...
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