5a) Given that a=arctan x, express sin a + cos a in term of x.
b) Given that x=tan c, find arccot x in terms of c.
Pls answer step by step slowly... thx
Secondary Maths !!!! Quick !!!
2010-09-15 1:33 am
回答 (1)
2010-09-17 1:29 pm
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