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Question 30:
cos 20° cos 70°
sin 70°_sin 20
°​

By Claire

Question 30:
cos 20° cos 70°
sin 70°_sin 20
°​

About the author
Claire

cos a 1+sin a
——— = ———–
1-sin a cos a

plz answer this question fast….​

32. If alpha & Beta the roots of the equation 2x^2 + 5x + 5 = 0, then find
(i)
1 1
+
O ß
(ii)
a

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