Question

find values of (I) sin(18°) (ii) cos(18°). (iii) sin(36°). (iv) cos (36°)​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

sin(18) = -1/4 +root 5/4

cos 18 = whole root over 10/4 + 2 (root5) /4

sin 36= whole root over 10 /4- 2 (root 5)/4