Question

4. If cos9a =Sina and 9a < 90°then find value of tan5a.
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Answer 1

Answer:

I am not sure what you want to do it in ababanajsns I will be at

Step-by-step explanation:

hi Theresa I have been trying the new job going

Answer 2

9a+a=90(Sina=cos9a is possible only when both a add up to 90°)

10a=90

a=9°

tan45°=1