(ii) cos(180° – A) + cos (180° + B) + cos(180° + C)– sin(90° + D) = 0
Answer:
-cosA-cosB-cosC-cosD
-(cosA+ cosB+cosC+cosD
-cos(A+B+C+D)
bgp8to5p8t
Step-by-step explanation:
g.8tp7fkuvo7y08
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Answer:
-cosA-cosB-cosC-cosD
-(cosA+ cosB+cosC+cosD
-cos(A+B+C+D)
Answer:
bgp8to5p8t
Step-by-step explanation:
g.8tp7fkuvo7y08