Question

prove that
cos 55 degrees sin 35 degrees+sin 55 degrees cos 35 degrees=1

Answer 1

Answer:

cos55°sin35°+sin55°cos35°=1

LHS

cos55sin(90-55)+sin55cos(90-55)

cos²55°+sin²55°

1

Answer 2

Answer:

I prove it

Step-by-step explanation:

55+35/55+35

90/90=

1 degrees

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