3 years ago

Prove the following relations: 1) (1 - cos²A) (1 + tan²A) = tan²A

Mathematics

2 answers:

krok68 [10]3 years ago

7 0

Step-by-step explanation:

So, this way we can do. Thank you!

liberstina [14]3 years ago

4 0

Step-by-step explanation:

(1 - cos²A) (1 + tan²A) = tan²A

(sin²A)(sec²A) = tan²A

(sin²A)(1/cos²A) = tan²A

(sin²A)/(cos²A) = tan²A

tan²A = tan²A → <u>Proved</u>

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vovikov84 [41]

So here's gives that

total weight of 25 bags = 50 x 25

= 1250

total cost of 25 bags weighing 50 kg is = 15000

cost of 1 kg = 15000 ÷ 1250 = 12

now total weight of 15 bags weighing 30 kg = 450

cost per kg = 12

cost of 15 bags weighing 30 each = 450 x 12

Answer = 5400 rupees.

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Prove the following relations: 1) (1 - cos²A) (1 + tan²A) = tan²A​

Prove the following relations: 1) (1 - cos²A) (1 + tan²A) = tan²A