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cos{cos^(-1)(4/5) + cos^(-1)(12/13)} का ...

`cos{cos^(-1)(4/5) + cos^(-1)(12/13)}` का मान क्या है ?

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Cos^(-1)(3/5)+Cos^(-1)(12/13)=

What is the value of cos {"cos"^(-1)(4)/(5)+ "cos"^(-1)(12)/(13)} ?

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

What is the value of cos{cos^(-1)""(4)/(5)+cos^(-1)""(12)/(13)}

Prove that cos^(-1)(3/5) + cos^(-1) (12/13) + cos^(-1)( 63/65) =pi/2 .

What is the value of cos 15^@-cos 165^@ ? cos 15^@-cos 165^@ का मान क्या है?

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)

cos^(-1)""(3)/(5) +cos ^(-1) "" (12)/(13) +cos ^(-1) "" (63)/(65)=(pi)/(2)

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