Question

(ii) cos (2 x 30°) =
1-tan230°
1+tan230°​

Answer 1

Answer:

MRPN is cyclic, ∠R = (5x - 13) °, ∠ N = (4x + 4) °. Find measures of ∠

R and ∠ N, by completing the following activity.

Solution : MRPN is cyclic

The opposite angles of a cyclic square are

∠R + ∠N =

∴(5x-13)° + (4x+4°) =

∴ 9x = 189

∴ x =

∴ ∠R = (5x-13)° =

∴ ∠N = (4x+4)° =

Answer 2

Please mark my answer as the brainliest answer.