Question

1. Express the following in terms of ratios of positive angles which are less than 45°:
(a) sin (- 70°).
(b) cos (- 65°).
(c) tan 1550
(d) sin 172
(e) cos 375°
(f) tan (-234°).
(g) cosec 843
(h) sec (-928°).
(i) cot (1145°) ​

Answer 1

Answer:

... ( d ) \sin 172 ^ { \circ } \) \( ( g ) \csc 843 ^ { \circ } \) \( ( e ) \cos 375 ^ { \circ } \) (h) \( \sec ... Express the following in terms of ratios of positive angles which are less than 45 , (a) sin(−70∘) (a) sin(−70∘)​ (b) cos(−65∘) (b) cos(−65∘)​ (c) ... (c) (d)sin172∘ (g)csc843∘ (e)cos375∘ (h) sec(−928∘) ( 1 ) tan(−234∘) (i)

Step-by-step explanation:

... ( d ) \sin 172 ^ { \circ } \) \( ( g ) \csc 843 ^ { \circ } \) \( ( e ) \cos 375 ^ { \circ } \) (h) \( \sec ... Express the following in terms of ratios of positive angles which are less than 45 , (a) sin(−70∘) (a) sin(−70∘)​ (b) cos(−65∘) (b) cos(−65∘)​ (c) ... (c) (d)sin172∘ (g)csc843∘ (e)cos375∘ (h) sec(−928∘) ( 1 ) tan(−234∘) (i)