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75,78 only

Perform the indicated operation. Express the result in terms of T. TT TT 77. 2 TT TT 76. 2m 75. TT 4 - 3 T + 4 TT TT + 4 TT T
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Answer #1

75)

pi - pi /4

multiplying pi with 4/4

4pi/4 - pi/4

= ( 4 pi - pi )/4

= 3pi/4

3pi/4

78)

pi/2 + pi/6

multiplying pi/2 with 3/3

3pi/6 + pi/6

= ( 3pi + pi )/ 6

= 4pi/6

= 2pi/3

2 pi/3
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