Trigonometry

NZ Level 7 (NZC) Level 2 (NCEA)

EXT Degrees, Minutes and Seconds in Angles

Given $10\cos x=7$10`c``o``s``x`=7:

a

Find the value of $x$`x` correct to two decimal places.

b

Hence find $x$`x` to the nearest minute.

Easy

Approx 3 minutes

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Apply trigonometric relationships, including the sine and cosine rules, in two and three dimensions

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