Math, asked by ckssachin2007, 3 months ago

Find the value of cos35\sin55+sin12\cos78-cos 18\72

Answers

Answered by Anonymous

1

Answer:

1

Step-by-step explanation:

cos(90-55)/sin55=sin55/sin55=1+

sin(90-78)/cos78=1-

cos(90-72)/sin72=1

1+1-1=2-1=1

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