uwu
Hey maybe help me ?
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Answer:
cscu – cotu = sinu/1 + cosu
1/sinu – cosu/sinu= sinu/1 + cosu
1 – cosu/sinu= (sinu)(1 – cosu) ÷ (1 + cosu)(1 – cosu)
1 – cosu/sinu= 1 – cosu/sinu
Hence Proved!!
-TheUnknownScientist 72