Prove that: cot27°+cot32°+cot31°=cot27°×cot32°×cot31°
Prove that:
cot27°+cot32°+cot31°=cot27°×cot32°×cot31°
Abhigyan Prasad , 4 Years ago
Grade 10
Trigonometry> Prove that: cot27°+cot32°+cot31°=cot27°×c...
1 AnswersYuvraj Singh
Ans:
Step-by-step explanation:
27+35+31=90
Cot90=0
Cot(27+35+31)=cot27+cot35+cot31 - cot27cot31cot35=0
Therefore,
Cot27+cot31+cot35=cot27.cot35.cot31
Hence proved
Step-by-step explanation:
27+35+31=90
Cot90=0
Cot(27+35+31)=cot27+cot35+cot31 - cot27cot31cot35=0
Therefore,
Cot27+cot31+cot35=cot27.cot35.cot31
Hence proved
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