Question

cos²a + sin-²a= 0 finde the angle of a​

Answer 1

Answer:

as we know cos²A+sin²A=1

⇒cos²A=1-sin²A---------(1)

according to the problem,

sinA+sin²A=1

⇒sinA=1-sin²A--------(2)

therefore: sinA = cos²A

cos²A+cos⁴A = sinA+sin²A = 1

Answer 2

Answer:

45 Angel is 45

Step-by-step explanation:

Angel is 45