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# C3 question help! watch

1. Can someone please explain how to do this C3 OCR question (June 2008):

Previous parts have given the answer √7sin(x+70.9)...

The question says:
Find the smallest positive value of x such that Rsin(x+A) +1 = 0 (above)
2. (Original post by ahopelesscase)
Can someone please explain how to do this C3 OCR question (June 2008):

Previous parts have given the answer √7sin(x+70.9)...

The question says:
Find the smallest positive value of x such that Rsin(x+A) +1 = 0 (above)
What have you tried?

Please post this in the maths forum in the future - you're more likely to get replies there.
3. (Original post by ahopelesscase)
Can someone please explain how to do this C3 OCR question (June 2008):

Previous parts have given the answer √7sin(x+70.9)...

The question says:
Find the smallest positive value of x such that Rsin(x+A) +1 = 0 (above)
That answer= (-1) and solve the equation .The answer is the smallest degree

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Updated: June 20, 2016
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