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Help plzzzzzzzzzzzzzzzzz

Help plzzzzzzzzzzzzzzzzz-example-1

2 Answers

0 votes

Answer:

0.9

Explanation:

Basic angle =


cos { }^( - 1) ( (4)/(5) ) = 36.870 \: degrees \\

Therefore,


theta = 180 + 36.870 = 216.87 \: degrees

Therefore,


\sin( (theta)/(2) ) = \sin(108.435 ) = 0.9

User Possa
by
5.1k points
1 vote

Answer:

this answer is -1.8

Explanation:

because you add and subtract all of them

User Daniel Hallqvist
by
5.1k points