Question

evaluate 5cos^2 60degrees +4sec^2 30 degrees -tan^2 45 degrees / sin^2 30 degrees + cos^30 degrees

Answer 1

this is your answer

thank you

Answer 2

Answer:

Question:-

5cos²60+4sec²30-tan²45/sin²30+cos²30

Step-by-step explanation:

Value of Cos60°=1/2

Value of Sec30°=2/√3

Value of Tan45°=1

Value of Sin30°=1/2

Value of Cos30°=√3/2

Now,Put all the values and Square them↓

5×(1/2)²+4×(2/√3)²-(1)²/1

[sin²∅+cos²∅=1]

5×1/4 +4×4/3 -1

=>5/4 +16/3 -1

5×3/4×3+16×4/3×4-1×12/1×12---->[We found the LCM].

=> 15+64-12+

12

=>67/12

Hope it helps™✓