Question

❐ Brainly Moderators
❐ Brainly Stars
❐ Brainly Best Users

CLASS - X
MATHS(TRIGONOMETRY)

Please answer the question.

(◕ᴗ◕✿) Complete solution required!
thanks!(◍•ᴗ•◍)❤​

Answer 1

$\huge⚘ \bf \ \red{Answer}$

$\red{= \dfrac{cos^3 20 ^{0} - cos^3 70 ^{0}}{sin^370^{0} - sin^3 20^{0} }} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \\ = \dfrac{cos^3 20 ^{0} - cos^3 ( 90^{0} - 20 ^{0})}{sin^3 ( 90^{0} - 20 ^{0}) - sin^3 20^{0}} \\ \\ = \dfrac{cos^3 20 ^{0} - cos^3 20 ^{0}}{sin^320^{0} - sin^3 60^{0} } \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \\ = 1 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$

• I Hope It's Helpful My Friend.

Answer 2

Answer:

Refer the attachment for your answer...

Step-by-step explanation:

heyy yaar kya chal raha aub toh tum bade log bann gaye ho... GENIUS...hum gareebo ko bhi dekh lo zra..¯\(°_o)/¯