Question

what are all the formulas that are used in class 10 chapter introduction to trigonometry​

Answer 1

Answer:

sin²A+cos²A=1

tan²A+1=sec²A

cot²A+1=cosec²A

sin(90-A)=cosA vice versa

tan(90-A)=cotA vice versa

sec(90-A)=cosecA vice versa

tanA=sinA/cosA

sinA=1/cosec vice versa

cosA=1/sec vice versa

tanA=1/cotA vice versa

Answer 2

Answer:

sin²A+cos²A=1

tan²A+1=sec²A

cot²A+1=cosec²A

sin(90-A)=cosA vice versa

tan(90-A)=cotA vice versa

sec(90-A)=cosecA vice versa

tanA=sinA/cosA

sinA=1/cosec vice versa

cosA=1/sec vice versa

tanA=1/cotA vice versa