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" 41."2cos^(-1)(3)/(sqrt(13))+cot^(-1)(1...

" 41."2cos^(-1)(3)/(sqrt(13))+cot^(-1)(16)/(63)+(1)/(2)cos^(-1)(7)/(25)=pi

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Find the value of 2cos^(-1)(3)/(sqrt(13))+cot^(-1)(16)/(63)+(1)/(2)cos^(-1)(7)/(25)

Find the value of 2 cos^(-1).(3)/(sqrt13) + cot^(-1).(16)/(63) + (1)/(2) cos^(-1).(7)/(25)

Find the value of 2 cos^(-1).(3)/(sqrt13) + cot^(-1).(16)/(63) + (1)/(2) cos^(-1).(7)/(25)

Find the value of 2cos^(-1)3/(sqrt(13))+cot^(-1)(16)/(63)+1/2cos^(-1)7/(25)

Find the value of 2cos^(-1)3/(sqrt(13))+cot^(-1)(16)/(63)+1/2cos^(-1)7/(25)

Find the value of 2cos^(-1)(3/(sqrt(13)))+cot^(-1)(16/63)+1/2cos^(-1)(7/25)

cot[cos^(-1)((7)/(25))]=

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