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tan 15^@ . Tan 20^@ . Tan 70^@.tan75^@ क...

tan 15^@ . Tan 20^@ . Tan 70^@.tan75^@ का मान होगा | 10 | गणित (2018A) | MATHS | BIHAR BOARD- P...

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tan75^@+tan15^@=….

tan 70^(@) - tan 20^(@) -2 tan 40^(@)=

tan 20^(@) + tan 25^(@) +tan 20^@ tan25^(@)=

The value of tan 15^(@) tan20^(@) tan 70^(@) tan75 is

tan10^(@)-tan50^(@)+tan70^(@)

tan10^(@)-tan50^(@)+tan70^(@)=?

tan65 ^ (@) - tan20 ^ (@) - tan65 ^ (@) tan20 ^ (@) =