TRIG IDENTITY QUESTION: (1 Viewer)

[theind1996]

Can you please help me solve these Trig Identity?:

I keep getting 2secA as the answer (which is obviously wrong)

 

[mirakon]

Can you please help me solve these Trig Identity?:

I keep getting 2secA as the answer (which is obviously wrong)

hmmm...i'm getting the same thing as you

 

[barbernator]

yeh im getting 2secA as well

 

[MATHmaster]

I am getting the same answer: 2secA

 

[theind1996]

oh ok guys, cambridge just did a massive fail then... thanks for the help anyways.

 

[such_such]

You could always check your answer by subbing any number as A into the equation.

 

[zeebobDD]

answer is 2secA, books wrong

 

[Dylanamali]

2secA

 

[RivalryofTroll]

Try to see what wolframalpha says

 

[theind1996]

yea, wolfram says 2secA, so cambridge WAS wrong. thanks for the help everyone.

 

[Marc26]

yup i get 2secA aswell,
Where abouts in cambridge is this?

 

[J-Wang]

yeah, i got 2secA as well

 

[fortune_cookie]

yup i get 2secA aswell,
Where abouts in cambridge is this?

Year 11 3 Unit Book

Exercise 4F , Page 132, Q12 (h)

 

[SpiralFlex]

The result would be right if there is a minus sign instead of the plus separating the fractions.

 

[iSplicer]

I think I remember that one! Answer was wrong =P

 

[hayabusaboston]

Yea as spiral says if u put - sign instead then it would be right, otherwise 2secA