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" (iii) "ubrace(cos^(-1)(4)/(5)+cos^(-1)...

" (iii) "ubrace(cos^(-1)(4)/(5)+cos^(-1)(12)/(13)=cos^(-1)(33)/(65))[AICBSE2012;CBSE2010C,2009C]

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Prove that cos^(-1)4/5cos^(-1)(12)/(13)=cos^(-1)(33)/(65)

Prove that cos^(-1)4/5 + cos^(-1)(12)/(13)=cos^(-1)(33)/(65)

Prove that cos^(-1)4/5 + cos^(-1)(12)/(13)=cos^(-1)(33)/(65)

Prove that cos^(-1)4/5 + cos^(-1)(12)/(13)=cos^(-1)(33)/(65)

Prove that: cos^(-1)(4/5)+cos^(-1)(12/13)=cos^(-1)(33/65)

Prove that: cos^(-1)4/5+cos^(-1)(12)/(13)=cos^(-1)(33)/(65)

Prove that: cos^(-1)(4/5)+cos^(-1)(12/13)=cos^(-1)(33/65)

Prove that cos^(-1)(4/5) + cos^(-1)((12)/(13))=cos^(-1)(33/65)

Prove that (cos^(-1)4)/(5)+(cos^(-1)(12))/(13)=(cos^(-1)(33))/(65)

Prove that: (cos^(-1)4)/(5)+(cos^(-1)(12))/(13)=(cos^(-1)(33))/(65)