challange!! 80% of people failed

[ahsan1234]

express cos(x) + under root (3)sin(x) in the form R(x-alpha).
refrence:MAY/JUNE 2007 Question no. 5 (P3) LINK IS GIVEN BELOW
http://www.xtremepapers.com/CIE/Interna ... 7_qp_3.pdf

 

[unique840]

R = square root of [(1^2) + (sqr rt of 3)^2]
R = 2
alpha = tan inverse [(square root of 3) / 1]
alpha = pie/3 or 60 degrees
2[x-(pie/3)]

 

[XPFMember]

express cos(x) + under root (3)sin(x) in the form R(x-alpha).
refrence:MAY/JUNE 2007 Question no. 5 (P3) LINK IS GIVEN BELOW
http://www.xtremepapers.com/CIE/Interna ... 7_qp_3.pdf

Assalamoalaikum!

80% failed??
whats difficult in it?

 

[abcde]

Plain application of the compound angle identity. Challenge thwarted?

 

[Moiz]

Lol that was a challenge?

 

[Nibz]

Common people, he was just trying to get attention.

 

[abcde]

^HAHA!

 

[OakMoon!]

Common people, he was just trying to get attention.

Common people?

 

[destined007]

Nibz right. He got the attention actually.

 

[Nibz]

Common?

That was a code word

 

[OakMoon!]

That was a code word

I guess it was!

 

[Banglarbagh]