Math, asked by saumya8953, 2 months ago

the value of sin²30 + cos²30 is

Answers

Answered by jyoti987com

0

Step-by-step explanation:

Sin² 30° - Cos² 30° = - (Cos² 30°- Sin² 30°) = - (Cos 2 × 30°) = - (Cos 60°) = - ½.

Previous Question

Next Question

Similar questions

Physics, 1 month ago

A forward potential of 10V is applied to a Si diode. A resistance of 1 KΩ is also in series with the diode. Find the current.

Chemistry, 1 month ago

D. Match the columns. a. used for making electrodes 1. Adsorption 2. Reducing agent b. CO + H2 3. Gas carbon C. CO + N2 4. Fullerene d. wood charcoal 5. Ivory black carbon monoxide 6. Water gas f. used as a black pigment 7. Producer gas g. electronic devices...

Math, 1 month ago

4. Which of the following 3-D shapes has the maximum number of vertices? a. Cone b. Cylinder c. Cuboid d. Square Pyramid...

Science, 2 months ago

5) a) C3H6, C4Hg and C5H10 belong to the same homologous series. i) Define homologous series. ii) Why is the melting point of C4H8 lower than C5H10? b) Why covalent compounds have low melting point ?

Math, 2 months ago

use the property of whole numbers and simplify :500 ×689 -500 ×89...

Math, 8 months ago

Draw the graph of the polynomial pbx) * 6x +8 and find the zeroes from the graph.

English, 8 months ago

write a letter from the parent to the principal requesting her for the conduct certificate.

Social Sciences, 8 months ago

8. उपभोक्ता के तीन कर्तव्य लिखो।...