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tan4^(@).tan43^(@).tan47^(@).tan86^(@) क...

`tan4^(@).tan43^(@).tan47^(@).tan86^(@)` का मान ज्ञात करे?

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Find the value of tan4^(@).tan43^(@).tan47^(@).tan86^(@) .

Prove that tan4^(@)tan43^(@)tan47^(@)tan86^(@)=1 .

Without using tables, evaluate the following: 3 cos 68^(@) . "cosec" 22^(@) - (1)/(2) tan 43^(@) .tan 47^(@) .tan 12^(@).tan 60^(@).tan 78^(@) .

The value of (tan 47^(@) + tan 43^(@))/(1-tan 47^(@) tan 43^(@)) is

If tan1^(@)tan2^(@)tan3^(@)tan4^(@). . .tan89^(@)=x^(2)-8 , then find the value of x.

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What is the value of (cosec(78^@+ theta)-sec(12^@-theta)-tan(67^@+ theta)+cot(23^@-theta))/(tan13^@ tan37^@ tan45^@ tan53^@ tan77^@) ? (cosec(78^@+ theta)-sec(12^@-theta)-tan(67^@+ theta)+cot(23^@-theta))/(tan13^@ tan37^@ tan45^@ tan53^@ tan77^@) का मान क्या होगा ?