Question

Help me :
J= tan20°.tan80°+tan80°.tan140°+tan140°.tan20°

Answer 1

Answer:

J= tan20*tan80 + tan80*tan140 +tan140*tan20

Step-by-step explanation:

tan20= 0.3640, tan80= 5.6713, tan140= -0.8391

(0.3640*5.6713) +(5.6713* -0.8391) +( -0.8391*0.3640)

2.0642 + ( -4.7588) + ( -0.3054)

.: J= -3

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