Math, asked by vivivo, 1 year ago

if x =r cosQsin R and y= r sinQsinR and z=r cos R. then find the value of x*x + y*y + z*z = r*r

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Answered by Mitanshu1711
1
Here is the proof .....
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vivivo: thanx bro
Mitanshu1711: welcome!!
vivivo: i have 1 more que.
Mitanshu1711: tel
Mitanshu1711: tell
vivivo: if. secA =x+1÷4x. prove that secA +tanA =2x or 1÷2x
vivivo: can u do it
vivivo: ?????????
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