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dsp73
3 years ago
11

PLEASE HELP us the half angle formula for 7, 8 and 9(which is marked 8 on accident)

Mathematics
1 answer:
Gre4nikov [31]3 years ago
3 0

Answer:

7.

sin105 =  \frac{ \sqrt{6}  +  \sqrt{2} }{4}

8.

cos105 =  \frac{ -  { \sqrt{6}  +  \sqrt{2} } }{4}

9.

tan105 =  - 2 -  \sqrt{3}

Answered by GAUTHMATH

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