Let's recall.
1. Fill in the blanks with reference to figure 6.1.
A
sin 0
cos 0 =
tan 0 =
0
B.
Fig. 6.1
2. Complete the relations in ratios given below.
sin e
(i)
(ii) sin 0 = cos (90 -
cos
(iii) cos 0 = sin (90 -
(iv) tan x tan (90 - 0) =
3. Complete the equation.
sin? 0 + cos2 0 =
4. Write the values of the following trigonometric ratios.
1
Gicos300
(ton 200
i sin 30°
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