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Let A = , (  R) such that A32 = .   Then a value of  is  

(a)

 

(b)

 

(c)

0

(d)

 


Question ID - 57570 | Toppr Answer

Let A = , (  R) such that A32 = .   Then a value of  is  

(a)

 

(b)

 

(c)

0

(d)

 

1 Answer - 5876 Votes

3537

Answer Key : (b) -

A =

A2 =  =

Then A4 = A2.A2 =

similarly A8 = A4.A4=

and so on A32 =  =

So sin32 = 1 and cos32 = 0

⇒ 32 = 2n +

 =       where n Z

put n = 0, α =



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