how can I solve this question. ?
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use identity tan(a+b)in eq
upp
&(a-b)$down ..
after u dnt no solve so I prove this question
upp
&(a-b)$down ..
after u dnt no solve so I prove this question
1234aditya:
how did pi divided by 4 become tan 45
wht
smj nhi ara
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