Question

please do fast it's urgent ​

Answer 1

Answer:

➡ The value of A is 22°

Step-by-step explanation:

sec 4A = cosec (A-20°)

= sec 4A= sec {90°-(A-20°)}. [ cosec(90-A) = secA]

= sec4A = sec (110° - A)

= 4A = 100° - A

= 5A =110°

= A= 110° /5

=A = 22°

Therefore, the required answer is A= 22°

IMPORTANT FORMULA:-

Trigonometry complementary angles:-

➡ sin(90-A)= cos A

➡ cos (90-A) = sin A

➡ tan (90-A) = cotA

➡cot (90-A) = tan A

Answer 2

Step-by-step explanation:

here is your answer take and try to solve