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cot12^(@)*cot 24^(@)*cot28^(@)*cot32^(@)...

`cot12^(@)*cot 24^(@)*cot28^(@)*cot32^(@)*cot48^(@)*cot88^(@)=……..`

A

`tan45^(@)`

B

2

C

`2 tan 15^(@)*tan45^(@)*tan75^(@)`

D

`tan15^(@)*tan45^(@)*tan75^(@)`

Text Solution

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The correct Answer is:
A, D
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Knowledge Check

  • The value of cot5^(@)*cot15^(@)* cot 25^(@)* cot 35^(@)* cot45^(@) * cot 55^(@) * cot65^(@) * cot 75^(@) * cot 85^(@) is ________

    A
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    B
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    D
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  • The value of cot41^(@).cot42^(@).cot43^(@).cot44^(@).cot45^(@).cot46^(@).cot.47^(@).cot48^(@).cot49^(@)

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    D
    `(1)/(sqrt(2))`

  • cot^(-1)(cot 4)=

    A
    4
    B
    `1/4`
    C
    `4-pi`
    D
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