Question

guys answer the above question plz its urgent​

Answer 1

Answer:

8) Given that,

SinA+Sin²A=1

SinA=1-sin²A

Now,

Cos²A+cos⁴A=cos²A(1+Cos²A)

=1-sin²A(1+1-sin²A)

=sinA(1+SinA)

=SinA+Sin²A=1

9) Given,

5tan²A-5sec²A+1

=-5(Sec²A-tan²A)+1

=-5(1)+1

=-5+1=-4

Step-by-step explanation:

It helps you......

Answer 2

Step-by-step explanation:

This is the answer

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