English, asked by LoganDRavager1239, 9 months ago

Find value of sin(50+A)-cos(40-A)+tan1 tan10 tan20 tan70 tan80 tan89

Answers

Answered by 217him217

1

Answer:

sin(50+A) - cos(50-A) + tan1 tan10 tan 20 tan70 tan80 tan89

= sin(50+A) - cos(90-(50+A) + tan1*tan89 tan10*tan80 tan20*tan70

= sin(50+A) - sin(50+A) + tan1cot1 * tan10cot10* tan20*cot20

= 0 + 1 *1*1

= 1

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