Math, asked by kavyaperiyaswamy19, 4 months ago

evaluate sec41 sin49+ cos49 cosec41-2/√3 tan20 tan60 tan70 -3(cos²45-sin²90)

Answers

Answered by kumarialisha

0

Answer:

0

Step-by-step explanation:

Important formula which is used in the following answer:

sec(90-A)=cosecA

cosec(90-A)=secA

secA.cosA=1

cosecA.sinA=1

tanA.cotA=1

tan60°=✓3

cos45°=1/✓2

sin90°=1

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