Leabhar Iomlán - Cogg

3. k 25, 4810. 1 √ _________ 32 √ 24. (i) p 6 (ii) (4, 3) agus (1, 0)5. (ii) (x 3) 2 (y 1) 2 646. (i) C (0, 5) (ii) √ __11. _______ √__ 3 1√ 5 (iii) (2, 4)7. (0, 0); r 2 agus (4, 3); r 3; 4x 3y 10 08. (i) 2g 5f 18; 2g f 6(ii) g 1, f 4(iii) x 2 y 2 2x 8y 7 0; (1, 4); r √ ___109. (i) C (3, 2) (ii) r 5 (iii) 410. (x 7) 2 (y 3) 2 91. (i) __ 2425nó x 2 y 2 14x 6y 49 02. (i) 4_33. 7_91. 1 aonad; √ ___114. ___ √__ 54 ; ____ √___ 1142. 3 x 4y c 0; 3x 4y 9 0;5. (i) 1_23x 4y 41 03. (i) C (8, 1); D (2, 1)6. 1(ii) (5, 4)10. 4_3(iii) (x 5) 2 (y 4) 2 911. (i) __ 24254. (x 3) 2 (y 5) 2 2514. 1_ nó 25. (x 8) 2 (y 2) 2 2 1615. (i) 5_nó (x 32) 2 (y 2) 2 3 166. (x 4) 2 (y 3) 2 2516. (ii) __ 77. (ii) x 2 y 2 9x 5y 24 08. g 4, c 7, f √ __7 ; (x 4) 2 (y √ __7 ) 2 169. x 2 y 2 6x 6y 9 0;x 2 y 2 30x 30y 225 010. (i) (a, b); r a(iii) (x 1) 2 (y 3) 2 1nó (x 5) 2 (y 1) 2 25(iv) 4 √ __2Caibidil 5: Triantánacht 2Triailcheisteanna 5.21. (i) _______ √__ 3 12 √ ( i i) _______ √__ 3 122 √ (iii) 1 √ __(v) 1_2_______ 322 √ (vi) 1_222. (i) _______ √__ 3 1√ ( i i) ___ 13 1 √ (iii) _______ √__ 3 12 √ 3 1 12. 23. (i) __ 33 (ii) __ 1665634. (i) ___ √__ 3(ii) 0 (iii) 1_22 ( iv) 15. (i) tan 3A (ii) sin 37. 4 1_28. __ (nó 45°)49. 1_4. (i) 4_2 5198 Téacs agus Trialacha 43 1 ; 7 4 √ __314. h 6 m17. h 2 m nó 3 mTriailcheisteanna 5.3(ii) __ 725(ii)4_5(iii) __ 247(ii)1_2 (iii) ___ 1√ 2(ii) __ 725√___sin (ii) ____ 1152518. (i) 1 2 sin 2 2A (ii) 2 cos 2 2A 119. (ii) 1_4Triailcheisteanna 5.41. (i) 2 sin 4x cos x (ii) 2 cos 3x sin x(iii) 2 cos 2x cos x (iv) 2 sin 6 sin (v) 2 sin 2 sin (vi) 2 cos 5 sin 22. (i) cos 20° (ii) 0 (iii) ___ 1√ 24. (i) √ __2 cos x (ii) √ __3 sin x5. (i) sin 5A sin A (ii) sin 5x sin 3x(iii) cos 7A cos 3A (iv) cos 8A cos 4A[cos 3A cos A]6. (i) 1_2( √ __[sin 6x sin 4x]3 1 ) (ii) 5 √ ______ 22Triailcheisteanna 5.51. (i) 45° (ii) 60° (iii) 45° (iv) 30°(v) 60° (vi) 45° (vii) 60° (viii) 30°3. (i) x (ii) √ ______1 x 2 (iii)(ii)___ 1√ 2_______ x√ 1 x 2(iii) __ 817