what is the value of cot 32° .cot 13° - 1 / cot 13° + cot 32° ?
a) 1/√2
b) 0
c) 1
d) -1
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Answered by
6
Answer is 1.
Because the whole expression can be written as cot (32+13)
=> cot45
=> 1
Because the whole expression can be written as cot (32+13)
=> cot45
=> 1
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0
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