4. Find the value of the following:
(i) sin 30° cosec 30° + cos 30° sec 30°
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Answer:
Step-by-step explanation:
sin30= 1/2
cosec30 = 1/sin30 =2
cos30=√3/2
sec30= 1/cos30=2/√3
sin30.cosec30 + cos30 . sec30= 1/2 ×2 + √3/2 ×2/√3
= 1+1
=2
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