OCR FSMQ Additional Maths 6th June 2016 Official Thread

OP

Original post by iwishicouldfly14

You are given that theta (which I'll show as () )is an acute angle....
Sin() = root5
3

Find the exact value of tan ()

I spent ages trying to use inequalities, and then ended up leaving it out and not understanding the mark scheme.

@Zacken can help with that. :biggrin:

By the way, did you mean

\sin\theta=\sqrt{5}

up there, or did you mean to include the 3 in the equaton?

Reply 82

Zacken

22

Original post by iwishicouldfly14

You are given that theta (which I'll show as () )is an acute angle....
Sin() = root5
3

Find the exact value of tan ()

I spent ages trying to use inequalities, and then ended up leaving it out and not understanding the mark scheme.

Original post by TheOtherSide.

@Zacken can help with that. :biggrin:

By the way, did you mean

\sin\theta=\sqrt{5}

up there, or did you mean to include the 3 in the equaton?

Thanks for the tag. BTW,

\sin \theta = \sqrt{5}

isn't possible since

\sin

is bounded between in

[-1,1]

.

As for the original poster, draw a right angled triangle. Label one of the angles

\theta

. Label the opposite side

\sqrt{5}

, label the hypotenuse

3

; so

\sin \theta = \frac{\text{opp}}{\text{hyp}}

and then find the adjacent using pythagoras and hence

\tan \theta = \frac{\text{opp}}{\text{adj}}

.

Reply 83

OP

Original post by Zacken

Thanks for the tag. BTW,

\sin \theta = \sqrt{5}

isn't possible since

\sin

is bounded between in

[-1,1]

.

Oh yeah.

No problem! :biggrin:

Reply 84

iwishicouldfly14

17

Original post by Zacken

Thanks for the tag. BTW,

\sin \theta = \sqrt{5}

isn't possible since

\sin

is bounded between in

[-1,1]

.

As for the original poster, draw a right angled triangle. Label one of the angles

\theta

. Label the opposite side

\sqrt{5}

, label the hypotenuse

3

; so

\sin \theta = \frac{\text{opp}}{\text{hyp}}

and then find the adjacent using pythagoras and hence

\tan \theta = \frac{\text{opp}}{\text{adj}}

.

I get it now, I never remember to draw a triangle. And soon as you mentioned it, I understood. Thanks!

Reply 85

Zacken

22

Original post by iwishicouldfly14

I get it now, I never remember to draw a triangle. And soon as you mentioned it, I understood. Thanks!

No problem.

Reply 86

Not too scared for this exam, got 90 in my mock.
Did everyone here take their maths gcse in year 10 then?

Reply 87

OP

Original post by gs41299

Not too scared for this exam, got 90 in my mock.
Did everyone here take their maths gcse in year 10 then?

Well, I didn't - I'm doing both GCSE maths and the FSMQ this year, but I think I'm mostly focusing on additional maths anyway. How about you?

Reply 88

Original post by TheOtherSide.

Well, I didn't - I'm doing both GCSE maths and the FSMQ this year, but I think I'm mostly focusing on additional maths anyway. How about you?

I did gcse maths in year 10 and got an a*, got 95% overall

Reply 89

OP

Original post by gs41299

I did gcse maths in year 10 and got an a*, got 95% overall

Woah, that's really good. Congrats on that grade!

I'm guessing you'll be taking both Maths and FM next year?

Reply 90

Original post by TheOtherSide.

Well, I didn't - I'm doing both GCSE maths and the FSMQ this year, but I think I'm mostly focusing on additional maths anyway. How about you?

Sorry about this i sound soo big headed :smile:

Reply 91

Original post by TheOtherSide.

Woah, that's really good. Congrats on that grade!

I'm guessing you'll be taking both Maths and FM next year?

No only maths, along with three sciences. Was debating on doing FM and taking 5 but thats way too much

Reply 92

Vanilla Cupcake

15

Original post by gs41299

Not too scared for this exam, got 90 in my mock.
Did everyone here take their maths gcse in year 10 then?

I did, a bit meh about FSMQ mainly because I have two other exams that day but it should be fairly easy, I've done loads of past papers

Reply 93

OP

Original post by gs41299

Sorry about this i sound soo big headed :smile:

Nah, that's fine - you were basically stating facts. :dontknow:

And you shouldn't hide an achievement like that. :tongue:

Reply 94

BlahLoser1

4

Original post by gs41299

I did gcse maths in year 10 and got an a*, got 95% overall

i did gcse math in year 10 aswell (last year). I got 90% :h:

Reply 95

OP

Original post by gs41299

No only maths, along with three sciences. Was debating on doing FM and taking 5 but thats way too much

If you're planning on doing four full A-levels, that's still a lot. :lol:

Spoiler

Reply 96

kendo9

16

Original post by gs41299

Not too scared for this exam, got 90 in my mock.
Did everyone here take their maths gcse in year 10 then?

I'm doing my GCSE and fsmq this year. I'm pretty much doing 95% additional and 5% gcse, since the gcse should be simple. :biggrin:

Reply 97

Original post by TheOtherSide.

If you're planning on doing four full A-levels, that's still a lot. :lol:

Spoiler

My school makes us do 4 minimum

Reply 98

OP